Top Blockchain Companies & Developers in Poland

Ratings Updated: April 18, 2025

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FREYSOFT

5.0 7 reviews
Verified

$10,000+

$25 - $49 / hr

50 - 249

Serves Poland

Services provided

40% Blockchain

20% Mobile App Development

20% Web Development +2 services

10% AI Development

10% Low/No Code Development

FREYSOFT is a development company specializing in providing fintech and startup solutions, including mobile applications, front-end engineering, and web development. Their reviews highlight exceptional professionalism, problem-solving capabilities, and timely delivery, with 100% of feedback being positive. Clients frequently commend their smooth communication and reliability, making them a preferred choice for tech-driven projects.

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Reviews mention Reliable

FREYSOFT is characterized as a reliable outsourcing partner, as noted by a client who praised their ability to provide qualified specialists swiftly. The client highlighted a seamless integration of a developer into their team, stating he performed tasks efficiently and demonstrated exceptional synergy, akin to a long-term employee. Overall, the sentiment regarding FREYSOFT's reliability is highly positive, with clients expressing complete satisfaction and no suggested areas for improvement.

Frontend Engineering Staff Aug for Restaurant Technology Co

5.0 Feb 23, 2023

Freysoft is a reliable outsourcing company that can provide qualified specialists. The synergy was incredible. As if this guy worked for us for 5 years.

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India (1)

Malaysia (1)

Ukraine (1)

United States (2)

England (1)

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Pixelette Technologies

4.8 27 reviews
Premier Verified

$25,000+

$25 - $49 / hr

250 - 999

Serves Poland

Services provided

40% Blockchain

40% AI Development

10% AR/VR Development +1 service

10% Generative AI

Pixelette Technologies is a blockchain development company offering services such as smart contract development, decentralized application development, and blockchain solutions. Across the reviews, clients consistently commend the company for its timely delivery, proactive approach, and exceptional project management. Approximately 100% of reviewers note their expertise and effective communication, while two reviews highlight their impressive organizational skills and adaptability.

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Reviews mention Helpful

Clients have expressed high satisfaction with Pixelette Technologies, highlighting their exceptional quality of work and timely delivery. One CEO noted the proactive communication and expert advice received throughout the project, stating, 'We couldn’t ask for a more professional service, these guys are 2nd to none.' The company is praised for treating clients as partners, reflecting a commitment to their success without any suggested areas for improvement.

Blockchain & Gold-Backed Tokens Dev for Blockchain Company

5.0 Mar 12, 2024

The company's ability to help with direction and treat you as a partner rather than just a client is impressive. They truly want the best for the people they work with. Every aspect has been delivered in a timely manner and every step well communicated.

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3 of 4 Blockchain reviews are 5 stars

1 new review for Blockchain in past 6 months

$50,000 – $199,999 avg. project cost

Blockchain PROJECT HIGHLIGHT

Blockchain Software Dev & UI/UX Design for Legal Tech Firm

5.0 — Pixelette Technologies developed and designed blockchain software for a legal tech firm. The team built the solution's UI/UX design, backend, and blockchain architecture and added collaboration Read more

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France (1)

Pakistan (5)

Panama (1)

United Arab Emirates (3)

United States (1)

England (3)

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small $9,000 For early-stage blockchain ideas & MVP planning medium $18,000 For startups ready to define a blockchain MVP large $35,000 For scale-ups & enterprise-grade blockchain system

Blockchain Discovery & Development Packages

Unlock your blockchain vision with confidence. From DeFi apps to utility tokens and Web3 platforms, our discovery packages help you validate ideas, shape strategy, and move fast from concept to code—built to impress investors and ready for scalable development.

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RedDuck

5.0 10 reviews

$50,000+

$100 - $149 / hr

10 - 49

Serves Poland

Services provided

100% Blockchain

RedDuck is a blockchain development company specializing in smart contract development, decentralized system development, and blockchain technology integration. The company consistently receives positive reviews for its project management, timely delivery, and effective communication, with 100% of clients praising their ability to integrate secure, innovative blockchain solutions seamlessly. Their work is noted for being efficient, proactive, and aligned with client goals.

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Reviews mention Unique expertise

Clients have expressed strong satisfaction with RedDuck's unique expertise, particularly in functional programming and Solidity code testing. One client noted the 'large concentration of functional programming expertise' as a distinguishing feature. The quality of code produced was highlighted as 'very high,' and the team's ability to adjust their approach based on feedback was commendable. Overall, the sentiment is highly positive, with clients recommending RedDuck for their specialized skills and adaptability.

Custom Software Development for Blockchain Company

5.0 Mar 18, 2022

I was impressed by RedDuck’s large concentration of functional programming expertise, which very few providers have.

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3 of 3 Blockchain reviews are 5 stars

$10,000 – $49,000 avg. project cost

Blockchain PROJECT HIGHLIGHT

[Review Under Dispute] Blockchain Development for Design Company

5.0 — RedDuck developed a blockchain-powered platform for a design company. The platform featured interactive learning modules, gamified challenges, and a token-based reward system. Read more

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More responsive than most other service providers

RedDuck is very responsive

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India (1)

South Africa (1)

Thailand (1)

Ukraine (1)

United States (1)

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Altoros

4.8 34 reviews

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Premier Verified

$25,000+

$50 - $99 / hr

250 - 999

Warszawa, Poland

Services provided

40% Blockchain

25% Custom Software Development

10% Enterprise App Modernization +4 services

10% Web Development

5% IT Staff Augmentation

5% Microservices Architecture Services

5% Mobile App Development

Altoros is a versatile software development company offering a range of services, including custom software development, web development, and UX design. Client reviews highlight their high-quality work, effective communication, and ability to integrate seamlessly with in-house teams. Approximately 80% of reviewers commend their professionalism and timely delivery, while some suggest room for improvement in language proficiency.

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Reviews mention Flexible

Altoros has received consistent positive feedback regarding their flexibility in project management and collaboration. Clients have noted their adaptability to different tools and workflows, emphasizing that Altoros does not impose specific methodologies but rather aligns with client needs. One client remarked on their quick responsiveness to changes, stating, 'they are very flexible in this regard.' Overall, the sentiment reflects a strong appreciation for Altoros' ability to accommodate varying project requirements effectively.

Custom Dev for Software Agency

5.0 Apr 28, 2021

They’re excellent. They don’t force us to use any specific tools, as they’re happy to go with whatever we want. We go with whatever fits our client’s needs. Altoros is extremely flexible and performs well with whatever tools we give them.

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Product Deployment for Digitalized Commodity Company

5.0 Mar 25, 2021

In general, they react very quickly. As a startup, we have often some changes, and they are very flexible in this regard.

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iOS Consulting & App Dev for IT Services Company

5.0 Dec 30, 2020

Very effective! The new resources are found quickly upon request. The management staff is very flexible in solving any issues that might arise. Our experience with Altoros is without a doubt the best one yet.

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Retirement Plan Tool Development for Financial Services Co

5.0 Oct 10, 2019

Altoros works quickly, and the team is flexible about scheduling. We don’t use a formal Gantt chart because my schedule is very busy, and it’s difficult for me to carve out dedicated time to work on this unique project. However, if I did require a formal Gantt chart with a schedule, I know Altoros would adhere to it because they’ve already asked me about it.

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More responsive than most other service providers

Altoros is very responsive

They are a great candidate to start a conversation with. Send them a short message or project inquiry.

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Australia (2)

Canada (1)

Denmark (1)

Finland (1)

Germany (2)

Israel (1)

Norway (2)

Poland (1)

Singapore (1)

South Africa (1)

Sweden (1)

Switzerland (2)

United States (15)

England (1)

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Vention

4.9 88 reviews
Premier Verified

$25,000+

$50 - $99 / hr

1,000 - 9,999

Łódź, Poland

Services provided

10% Blockchain

15% Custom Software Development

15% Web Development +6 services

10% AI Development

10% AR/VR Development

10% Business Consulting

10% IT Staff Augmentation

10% Low/No Code Development

10% Mobile App Development

Vention is a versatile technology services company providing software development, team augmentation, and project management solutions. With consistent positive feedback from clients, 100% of reviewers praised their high-quality deliverables, responsiveness, and alignment with company values. Vention is noted for its skilled engineers, effective communication, and commitment to meeting deadlines, making them a valuable partner for varied technology projects.

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Reviews mention Accommodating

Clients consistently praise Vention for their accommodating nature, highlighting their quick response to urgent needs and adaptability to changing project requirements. One client noted the team's relentless pursuit of the right talent and their unwavering commitment, stating, 'From day 1, we knew we had picked the right partner.' Another emphasized their efficiency in project management, affirming that Vention's team consistently met deadlines while remaining flexible. Overall, the sentiment reflects a strong appreciation for Vention's responsiveness and dedication to client success.

Automation SaaS Product Dev for Logistics SaaS Provider

5.0 Feb 7, 2024

The Vention team consistently went above and beyond the call of duty to deliver on time or even ahead of time. Just this week, we mentioned a nice-to-have tool that would make our customer's lives better. One of our engineers produced the tool and deployed it to production in a single day. They are absolute rockstars.

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Dev Staff Augmentation for B2C Moving Concierge Startup

5.0 Apr 10, 2020

They were very autonomous. We’re a small team, with not a lot of managerial resources, but they were able to pace themselves. They required very few check-ins to stay on pace. They’ve been able to roll with us as we go and adapt to what we needed as a startup.

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4 of 4 reviews are 5 stars

$200,000 – $999,999 avg. project cost

Reviewed 4 times in the past 6 months

In recent reviews, Vention has received positive feedback for their exceptional project management, technical expertise, and strong communication. Clients praised their ability to deliver projects on time while maintaining high-quality standards. Specific highlights include a supportive team culture, a proactive approach to problem-solving, and innovative solutions tailored to client needs. One client noted Vention's genuine commitment to their success, while another emphasized the quality and skill of their developers. Overall, sentiment is overwhelmingly positive, with no significant areas for improvement identified.

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Canada (3)

Cyprus (1)

France (1)

Germany (2)

Iceland (1)

Israel (2)

Latvia (1)

Lithuania (2)

New Zealand (1)

Singapore (1)

Spain (1)

Sweden (1)

United States (57)

Scotland (1)

England (10)

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Andersen Inc.

4.9 125 reviews
Premier Verified

$50,000+

$50 - $99 / hr

1,000 - 9,999

Warszawa, Poland

Services provided

10% Blockchain

20% Custom Software Development

15% IT Managed Services +5 services

15% Mobile App Development

10% AI Development

10% IT Strategy Consulting

10% Low/No Code Development

10% Web Development

Andersen Inc. is a Blockchain Development company noted for its expertise in Distributed Ledger Development and Smart Contract Development. They received 100% positive feedback, with clients praising their customer relationship management, transparency, and on-time delivery. Their alignment with client needs and budget further underscores their suitability for projects involving Blockchain Solutions.

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Reviews mention Flexible

Andersen Inc. has received consistently positive feedback regarding their flexibility. Clients highlight the team's responsiveness to changing business needs, with one noting, "the team is highly flexible and responsive to any business need in no time." Another client emphasized their "ability to answer all business needs in a very flexible and fast solution-oriented way." Overall, the sentiment reflects a strong appreciation for Andersen's adaptability and commitment to customer-centric solutions.

Staff Augmentation & Web App Dev for Manufacturing Company

4.5 Nov 14, 2023

The team is highly flexible and responsive to any business need. The ability to answer all business needs in a very flexible and fast solution-oriented way and the desire to be customer-centric at all times.

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Product Dev for Ride-Hailing Company

4.5 Aug 29, 2023

The team is highly flexible and responsive to any business need in no time. Ability to be flexible to all appeared business needs and desire to be customer-centric at all times.

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Custom Software Development for Market Research Company

5.0 May 23, 2023

Flexible and high-quality staff!

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Website Dev & Redesign for Online Jewelry Retailer

5.0 Sep 7, 2022

The flexibility, patience, and timeliness. But also creativity of the designers.

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UX/UI Design for Real Estate Design Company

5.0 Jun 9, 2021

They’re a professional and flexible team that not only knows what they’re doing but is well aware of our own preferences as well.

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1 of 1 Blockchain reviews are 5 stars

$200,000 – $999,999 avg. project cost

Blockchain PROJECT HIGHLIGHT

Custom Blockchain Dev for Blockchain Company

5.0 — Andersen Inc. provides ongoing custom software development for a blockchain company in the travel industry. The team works on forks of Avalanche for the Camino network. Read more

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More responsive than most other service providers

Andersen Inc. is responsive

They are a great candidate to start a conversation with. Send them a short message or project inquiry.

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Australia (2)

Austria (3)

Belgium (3)

Belarus (1)

Canada (1)

Croatia (1)

Cyprus (2)

Finland (7)

France (3)

Georgia (1)

Germany (21)

India (1)

Ireland (3)

Israel (2)

Kazakhstan (1)

Latvia (5)

Lithuania (1)

Luxembourg (3)

Netherlands (2)

Russia (15)

Singapore (3)

South Africa (2)

Spain (2)

Sweden (2)

Switzerland (6)

United Arab Emirates (2)

Ukraine (2)

United States (11)

Uzbekistan (1)

England (8)

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SENLA

4.9 18 reviews
Premier Verified

$10,000+

$25 - $49 / hr

250 - 999

Warszawa, Poland

Services provided

15% Blockchain

20% Custom Software Development

20% Web Development +4 services

15% Mobile App Development

10% BI & Big Data Consulting & SI

10% E-Commerce Development

10% IT Staff Augmentation

SENLA is a versatile software development and consulting company specializing in various technological solutions, including mobile and web applications, backend development, and data management platforms. Reviewers consistently praise SENLA's technical expertise, timely delivery, and strong communication, with approximately 90% expressing satisfaction with project outcomes. Their adaptability to client needs and integration within teams is frequently highlighted, underscoring their value as a reliable partner.

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Reviews mention Great project management

Client feedback on SENLA highlights exceptional project management capabilities, with consistent praise for timely responses and support. One client noted their 'perfect' performance in managing a complex CRM redesign, while another emphasized their effective remote collaboration and communication, stating they are 'as good as any English team.' Overall, the sentiment is overwhelmingly positive, reflecting SENLA's dedication to quality and responsiveness in project management.

CRM Update for Financial Services Firm

5.0 Apr 13, 2017

They performed perfectly. They always react on time without delays and are always ready to help us.

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Salesforce Dev for Cloud Consultants

5.0 Mar 13, 2017

They’re fantastic. One thing I was worried about since they’re in Belarus and we’re in London, was the remote collaboration and the language barrier. Neither has been an issue. They’re as good as any English team I’ve worked with in communicating what they need. They have some great tools that they use to get screenshots. We use Google Docs to collaborate on tasks and to track things electronically constantly. Their approach to managing code, development, and testing is great. If we want to do something quick, they have the tools for that, but if we want to do it in a structured way, they document everything in order to keep things organized.

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3 of 3 reviews are 5 stars

$1,000,000 – $9,999,999 avg. project cost

Reviewed 3 times in the past 6 months

Over the past six months, client feedback for SENLA has been overwhelmingly positive. Clients praised their strong project management, timely delivery, and effective communication. Notably, YARA GmbH highlighted SENLA's deep knowledge of data management methodologies, while SimonsVoss Technologies commended their attention to detail in design work. Monetha's Chief Product Officer noted SENLA's seamless integration into their team and consistent delivery of quality work, emphasizing a strong cultural fit. Overall, clients expressed satisfaction and a desire for continued collaboration.

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Belarus (1)

Cyprus (1)

Germany (3)

Israel (4)

Malta (1)

Montenegro (1)

Russia (2)

Switzerland (2)

United States (2)

England (1)

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Artkai

4.9 51 reviews
Premier Verified

$25,000+

$50 - $99 / hr

50 - 249

Gliwice, Poland

Services provided

10% Blockchain

20% UX/UI Design

20% Web Development +5 services

10% AI Development

10% Branding

10% Custom Software Development

10% Low/No Code Development

10% Web Design

Artkai is a company specializing in Blockchain Technology services, including Front End Application development and project design for decentralized platforms. With a 100% positive feedback rate, clients commend their skilled team for their personal care, passion, and effective communication, noting their conscientious and diligent approach to project management.

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Reviews mention Innovative

Artkai is consistently recognized for its innovative approach, with clients highlighting their ability to create unique solutions tailored to specific needs. One client praised Artkai for understanding an unfamiliar industry and developing a product that didn't exist before. Another noted their use of cutting-edge technologies and methodologies, leading to visually appealing and functional designs. Overall, the sentiment regarding Artkai's innovation is highly positive, emphasizing their creativity and technical proficiency in delivering exceptional digital products.

Web Development for Debt Collection Company

5.0 Mar 28, 2024

Artkai constantly keeps abreast of the latest trends and innovations in design and software development. They employ cutting-edge technologies and work methodologies to create modern and efficient solutions for their clients. The collective expertise of the team allows them to create innovative and high-quality products capable of meeting the highest client demands.

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Custom Software Dev for Beverage Management Co

5.0 Dec 30, 2019

They were able to understand an unfamiliar industry and build a product that didn’t exist. Their team provided a lot of insight and collaborated, not necessarily taking on my ideas. I told them what I wanted and they would give me their inputs to make the platform better. Their ability to build a product from scratch demonstrates their innovative capacity.

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HTML, CSS, Frontend UI/UX Dev for Startup

5.0 May 24, 2018

They have a strong work ethic and deliver innovative, complex designs, but they wouldn’t have the desire to elevate their product to that level if they didn’t also have a deep concern for you as their customer and creative partner. They’re engaged with your process and want to help you succeed.

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1 of 1 Blockchain reviews are 5 stars

$10,000 – $49,000 avg. project cost

Blockchain PROJECT HIGHLIGHT

Frontend Development & UI/UX Design for Lending Exchange

5.0 — A decentralized lending exchange hired Artkai to complete their app's frontend. Tasks included improving the app's UX and overall design, refactoring its structure, improving functionality, and Read more

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4 of 4 reviews are 5 stars

$50,000 – $199,999 avg. project cost

Reviewed 4 times in the past 6 months

In the past six months, Artkai has received consistently positive feedback from clients, highlighting their effective communication, timely delivery, and high-quality output. Clients praised their collaborative approach, with notable comments about transparency during project management and the ability to meet deadlines. One client noted Artkai delivered 'rigorously complete and thorough work products,' while another emphasized their 'very good quality for a fair price.' Overall, the sentiment reflects strong client satisfaction and alignment with project goals.

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More responsive than most other service providers

Artkai is very responsive

They are a great candidate to start a conversation with. Send them a short message or project inquiry.

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S-PRO

4.9 46 reviews
Premier Verified

$25,000+

$25 - $49 / hr

50 - 249

Łódź, Poland

Services provided

10% Blockchain

35% Web Development

25% AI Development +4 services

15% Mobile App Development

10% Custom Software Development

3% AI Consulting

2% IT Strategy Consulting

S-PRO is a company specializing in Blockchain Development and custom software solutions. Reviews indicate a high level of satisfaction, with 100% of clients highlighting their professionalism and reliability. Clients appreciate S-PRO's flexibility and communication, though some suggest improvements in project management transparency. Overall, S-PRO's commitment to delivering quality and integrating with client teams is consistently praised.

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Reviews mention Accommodating

Clients consistently highlight S-PRO's accommodating nature, particularly their flexibility in handling scope changes and responsiveness to client needs. One client noted their willingness to adjust timelines and deliverables without affecting project schedules. Another emphasized their ease of communication and immediate responses to requests, which contributed to a seamless project experience. Overall, the feedback reflects a strong sentiment of satisfaction regarding S-PRO's accommodating approach to project management.

Mobile App Development for Financial Services Company

4.5 May 13, 2022

They were flexible and accommodating of scope changes. I'd say some physical meetings would have helped quite a lot, but considering the overall lockdowns and restrictions due to Covid19, I'd say they've handled the case fairly well.

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Web Dev for Blockchain Video Streaming Startup

4.5 Nov 13, 2019

They were extremely responsive and accommodated our schedule despite being in a different time zone. Even when we needed to implement changes, timelines weren’t affected. They delivered everything on time and in budget.

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1 of 2 Blockchain reviews are 5 stars

$50,000 – $199,999 avg. project cost

Blockchain PROJECT HIGHLIGHT

Custom Software Dev for FinTech Company

5.0 — S-PRO has developed a web application for a fintech startup. The app is intended to do product marketing in the financial sector; they’ve built it based on a previous MVP. Read more

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1 of 1 reviews is 5 stars

Less than $10,000 avg. project cost

Reviewed 1 time in the past 6 months

In the last six months, S-PRO received positive feedback for their exemplary project management and tailored software solutions. A client highlighted a 30% reduction in manual tasks and a 25% increase in client engagement due to S-PRO's user-friendly platform. The team was praised for timely deliveries, effective communication, and responsiveness to specific requests. Overall, clients expressed high satisfaction with S-PRO's adaptability and commitment to customer support, with no areas for improvement noted.

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Dashbouquet Development

4.9 30 reviews
Premier Verified

$10,000+

$25 - $49 / hr

50 - 249

Warszawa, Poland

Services provided

10% Blockchain

20% Custom Software Development

20% Mobile App Development +4 services

20% Web Development

10% AI Development

10% Generative AI

10% UX/UI Design

Dashbouquet Development is a software development company specializing in custom web and mobile app development, staff augmentation, and IT solutions. The company is highly rated for its professionalism, agility, and technical expertise. Across their reviews, 100% of clients praise their project management skills and responsiveness, and 90% highlight their ability to meet deadlines with high-quality deliverables. Clients commend their adaptability and the quality of their team members, with multiple reviewers noting their significant positive impact on business outcomes.

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Reviews mention Autonomous

Dashbouquet Development has received positive feedback regarding their autonomy and project management capabilities. Clients highlighted their ability to work independently, often requiring minimal oversight. One client noted their proactive communication and adaptability to project needs, while another appreciated their structured approach, despite occasional lapses in communication. Overall, the sentiment is favorable, with clients valuing their autonomy and the quality of their work, although some identified areas for improvement in communication and code review practices.

React Native Mobile App Dev for EdTech Startup

5.0 Aug 18, 2021

Their project manager used a Kanban approach to the project, always asking us what we needed to work on next. They also asked a lot of questions and figured things out by inspecting our web code. As a result, I didn’t need to spell out everything. In fact, they even caught bugs while they were inspecting the code to know how the web and mobile apps would interact.

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React Native Mobile App Dev for EdTech Startup

5.0 Aug 18, 2021

They took ownership of the project and provided real value as we threw out ideas to them. Overall, they were a highly independent team. That was the nature of their independence; I didn’t review or force standards on that part, so this was partially my fault.

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Mobile App Dev for Horse Tracking Tech Firm

4.5 Jan 16, 2018

They did as much as they could on their own without requiring me to always provide feedback or code reviews. They were autonomous, but there was also a lack of communication, possibly coming from my side; I didn’t push enough. We used Agile methodology, defining features and estimating the required amount of work for each sprint.

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Belarus (3)

Germany (2)

Israel (4)

Côte d'Ivoire (1)

Netherlands (1)

United States (7)

England (11)

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Phenomenon Studio

5.0 32 reviews
Premier Verified

$10,000+

$50 - $99 / hr

50 - 249

Wrocław, Poland

Services provided

10% Blockchain

25% UX/UI Design

10% Branding +6 services

10% Custom Software Development

10% Low/No Code Development

10% Mobile App Development

10% Web Design

10% Web Development

5% Product Design

Phenomenon Studio is a versatile design and development agency specializing in web and mobile app redesign, branding, and UX/UI design. Across eight reviews, the firm consistently received positive feedback for its excellent project management, communication, and alignment with client goals, with 100% of reviewers highlighting their satisfaction. Notably, clients praised Phenomenon Studio's ability to deliver user-friendly designs on time and within budget, enhancing user experience and engagement.

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Reviews mention Flexible

Phenomenon Studio has received positive feedback regarding their flexibility in project management and adaptability to client needs. Clients noted their responsiveness and willingness to collaborate, with one CEO stating they 'stepped up to help coordinate' during resource constraints. Another client emphasized their capacity to 'adapt to meet your needs' while providing valuable feedback. Overall, the sentiment reflects a strong appreciation for their flexible approach, which enhances the project experience.

UI/UX Design & Mobile App Dev for eCommerce Payment Solutions Firm

5.0 Aug 16, 2024

Their project management was excellent. Even when we faced internal resource constraints, Phenomenon Studio stepped up to help coordinate the collaboration between their team and ours. They were flexible, responsive, and able to adapt to our processes and development environment.

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MVP Development & Design & AWS Integration for FinTech Co

5.0 Jul 19, 2024

Phenomenon Studio is very responsive to our needs and provides valuable feedback to support our decision-making process. Their ability to communicate effectively, be adaptable, professional, and willing to do more than simply carry out assigned tasks.

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UI/UX for Mental Health Platform

4.5 Nov 12, 2020

They are flexible and can adapt to meet your needs. Be direct and know what you want. They are quite communicative and have met most of the deadlines.

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4 of 5 reviews are 5 stars

Less than $10,000 avg. project cost

Reviewed 5 times in the past 6 months

In recent reviews, clients have praised Phenomenon Studio for their exceptional communication, responsiveness, and ability to deliver high-quality designs on time. Notably, a Head of School commended their user-friendly website redesign that significantly increased inquiries. Similarly, a restaurant co-founder highlighted their effective project management and seamless process. Overall, the sentiment reflects strong client satisfaction, with many expressing eagerness for future collaborations and noting no significant areas for improvement.

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Azerbaijan (1)

Canada (2)

France (1)

Italy (1)

Singapore (1)

Slovakia (1)

Spain (1)

Switzerland (3)

United Arab Emirates (2)

United States (8)

England (3)

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MITRIX Technology

5.0 14 reviews
Premier Verified

$10,000+

$50 - $99 / hr

50 - 249

Warszawa, Poland

Services provided

10% Blockchain

20% AI Development

20% BI & Big Data Consulting & SI +4 services

20% IT Staff Augmentation

10% Cloud Consulting & SI

10% Custom Software Development

10% Web Development

MITRIX Technology is a versatile IT services company, offering expertise in web development, UX design, DevOps, and software engineering across multiple industries. Their reviews reflect a high level of satisfaction, with 100% positive feedback. Clients praise their exceptional communication, swift responsiveness, and ability to provide top-notch talent, making them a reliable and innovative partner in IT solutions.

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Reviews mention Flexible

Clients have noted MITRIX Technology's flexibility as a significant strength, particularly in adapting to communication needs and working hours. One review highlighted their responsiveness and the ability to align with the client's schedule, stating, "Their team has been great about projects that required them to work on our time." Overall, the sentiment reflects a positive view of MITRIX's adaptability, though there is a suggestion for improvement in synchronizing efforts more consistently with client operations.

Front- & Backend Software Dev for Health Care Tech Co

5.0 Feb 19, 2021

The project management and coordination are done by us. We’re using Microsoft Azure, Asana, and Jira. They also communicate via GitHub. Their team’s flexible and understands our needs for communicating in different ways. MITRIX focuses on the development efforts.

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Front- & Backend Software Dev for Health Care Tech Co

5.0 Feb 19, 2021

MITRIX operates like a fast-paced local firm. We also try to ensure that our working hours line up. For the most part, they’re great about hours. Their team has been great about projects that required them to work on our time. That hasn’t been an ongoing issue.

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MITRIX Technology is very responsive

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Innowise

4.9 71 reviews
Premier Verified

$10,000+

$50 - $99 / hr

1,000 - 9,999

Warszawa, Poland

Services provided

10% Blockchain

10% AI Development

10% AR/VR Development +7 services

10% Cloud Consulting & SI

10% Custom Software Development

10% E-Commerce Development

10% Enterprise App Modernization

10% IT Staff Augmentation

10% Mobile App Development

10% Web Development

Innowise is a technology company specializing in Blockchain Development, offering services such as Smart Contract Development and Blockchain Solutions. Overall, feedback from clients is predominantly positive, with 100% of reviewers praising their expertise and project management. Clients appreciate Innowise's ability to deliver high-quality products on time and their deep knowledge in blockchain technology, with some mentioning their exceptional consulting capabilities.

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Reviews mention Accommodating

Innowise has received positive feedback regarding their accommodating nature, with clients highlighting their flexibility and responsiveness. One client noted, 'Innowise's communication and flexibility have been very important to me,' emphasizing their willingness to adapt to the client's needs. Another client appreciated how Innowise 'adjusted quickly when we needed it,' showcasing their commitment to client satisfaction. Overall, the sentiment reflects a strong appreciation for Innowise's ability to tailor their services to fit various project requirements.

DevOps Services for Real Estate-Oriented AI-Driven Platform

5.0 Aug 19, 2024

Innowise's communication and flexibility have been very important to me. As a small company, I can't hire a team of five people like many of Innowise clients probably do. Still, they're accommodating my size with the hope on both sides that, as I grow, I'll ultimately consume more of their services. I really appreciate that Innowise has given me access to a senior engineer, providing ample flexibility on how much I use them each month. This is invaluable to me because I can't afford to hire a full-time engineer. Therefore, having a partner who works with me like this is instrumental, but having a large company like them do so is unusual.

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Staff Aug & Data Engineering for Technology Solutions Co

5.0 Nov 13, 2024

Their project management was smooth - they kept us updated, met every deadline, and adjusted quickly when we needed it. They felt like part of our team, not just a vendor. A bit more upfront documentation for maintenance would be helpful, but they adapted well to our needs overall.

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5 of 5 Blockchain reviews are 5 stars

3 new reviews for Blockchain in past 6 months

$50,000 – $199,999 avg. project cost

Blockchain PROJECT HIGHLIGHT

Blockchain & Custom Software Dev for Art Management System

5.0 — Innowise provided blockchain and custom software development services for an art management system. The team developed the MVP of an art certificate tokenization system, managing front- and backend Read more

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Apriorit

4.9 40 reviews
Premier Verified

Undisclosed

$100 - $149 / hr

250 - 999

Poznań, Poland

Services provided

20% Blockchain

20% Custom Software Development

20% Cybersecurity +4 services

15% AI Development

10% Generative AI

10% Web Development

5% IT Staff Augmentation

Apriorit is a technology company specializing in Blockchain Solutions, with expertise in Smart Contract Development and Decentralized System Development. Clients appreciate their professional and flexible approach, as evidenced by positive feedback highlighting their timely deliverables and robust product development. Approximately 100% of reviews emphasize the impressive professionalism of Apriorit's senior engineers.

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Reviews mention Accommodating

Clients consistently highlight Apriorit's accommodating nature, noting their exceptional adaptability to time zone differences and proactive communication. One client praised their team's ability to ask clarifying questions rather than following instructions blindly, reflecting a conscientious, customer-centric approach. Another remarked on Apriorit's willingness to work extra hours and resolve performance issues promptly, indicating a strong commitment to client needs and project success.

Legacy App Modernization for Tech Company

5.0 Jun 29, 2016

Apriorit accommodated us through an 8-9-hour time zone shift. We also appreciated their ability to communicate in English, take directions and ask questions, without following requirements blindly. If something did not make sense, Apriorit wouldn't simply build it. They would ask questions and remain proactive in engaging the product owner.

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Ongoing Development for Computer Software Firm

4.0 Jun 27, 2016

Apriorit has a dedicated, hardworking team. They're always willing to work extra hours and work on holidays if we have an issue. I have nothing but great things to say about the engineers and our project manager from Apriorit. Whenever I bring something up, such as performance issues with a certain resource, Apriorit will be quick to either fix the situation or find another person for our team.

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0 of 1 Blockchain reviews are 5 stars

$200,000 – $999,999 avg. project cost

Blockchain PROJECT HIGHLIGHT

Smart Contract Development for NFT Art Collection Co

4.5 — Apriorit has developed a smart contract solution for an NFT art collection company using the Ethereum network. Currently, the team helps the client implement changes to the solution as needed. Read more

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2 of 2 reviews are 5 stars

$50,000 – $199,999 avg. project cost

Reviewed 2 times in the past 6 months

In recent reviews, clients commend Apriorit for their exceptional project management, timely delivery, and high-quality technical expertise. A Global Technical Lead noted their responsiveness and professionalism, stating they delivered services to 1,000 users and fixed over 30 bugs. Similarly, a Product Manager highlighted the valuable insights from a code review, which improved their product. Overall, clients express strong satisfaction and a willingness to collaborate again, reflecting a positive sentiment towards Apriorit's capabilities.

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FREYSOFT

5.0 7 reviews
Verified

$10,000+

$25 - $49 / hr

50 - 249

Warszawa, Poland

Services provided

40% Blockchain

20% Mobile App Development

20% Web Development +2 services

10% AI Development

10% Low/No Code Development

FREYSOFT is a development company specializing in providing fintech and startup solutions, including mobile applications, front-end engineering, and web development. Their reviews highlight exceptional professionalism, problem-solving capabilities, and timely delivery, with 100% of feedback being positive. Clients frequently commend their smooth communication and reliability, making them a preferred choice for tech-driven projects.

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Reviews mention Reliable

FREYSOFT is characterized as a reliable outsourcing partner, as noted by a client who praised their ability to provide qualified specialists swiftly. The client highlighted a seamless integration of a developer into their team, stating he performed tasks efficiently and demonstrated exceptional synergy, akin to a long-term employee. Overall, the sentiment regarding FREYSOFT's reliability is highly positive, with clients expressing complete satisfaction and no suggested areas for improvement.

Frontend Engineering Staff Aug for Restaurant Technology Co

5.0 Feb 23, 2023

Freysoft is a reliable outsourcing company that can provide qualified specialists. The synergy was incredible. As if this guy worked for us for 5 years.

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Smartym Pro

4.7 15 reviews
Verified

$25,000+

$25 - $49 / hr

10 - 49

Warszawa, Poland

Services provided

10% Blockchain

50% Custom Software Development

15% IT Staff Augmentation +3 services

10% Mobile App Development

10% Web Development

5% IT Managed Services

Smartym Pro is a versatile software development company specializing in mobile and web app development, blockchain solutions, and investment platforms. Reviews highlight their strong project management, effective communication, and ability to meet deadlines. Approximately 90% of reviewers commend Smartym Pro's ability to deliver on time and within budget, while 80% mention their proactive approach and willingness to provide innovative solutions. The company is praised for its skilled team and seamless integration with clients' requirements.

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Reviews mention Great project management

Clients have consistently praised Smartym Pro for their exceptional project management skills. One CTO highlighted their ability to maintain high-level project management while delivering excellent code. The smooth workflow, characterized by effective communication through dedicated contacts and regular meetings, further underscores their management prowess. Despite occasional delays in feature completion, overall sentiment reflects a strong confidence in Smartym Pro's capacity to navigate challenges and meet project goals efficiently.

Platform & P2P Messenger Dev for Cryptocurrency Firm

5.0 Jan 30, 2019

The workflow has been smooth. They’ve successfully overcome challenges and issues during development and testing. Aside from having a dedicated contact person who manages the project, we also have weekly remote meetings. We visit the Smartym Pro’s office frequently. They’ve maintained high-level project management and delivered excellent code.

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Authentic Digital

4.9 5 reviews
Verified

$5,000+

$100 - $149 / hr

10 - 49

Kraków, Poland

Services provided

20% Blockchain

25% UX/UI Design

20% Custom Software Development +2 services

20% Web Design

15% Web Development

Authentic Digital is a versatile agency specializing in UX/UI design, web development, and product branding. They consistently deliver high-quality, modern solutions that exceed expectations, as noted in 100% of reviews. Clients commend their dedication to project success, agile management, and innovative approaches, with 75% highlighting their ability to adapt and engage creatively within constrained timeframes and budgets.

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Peiko

5.0 114 reviews
Verified

$25,000+

$25 - $49 / hr

50 - 249

Warszawa, Poland

Services provided

90% Blockchain

10% Web Development

Peiko is a blockchain development firm specializing in creating innovative blockchain solutions, including decentralized applications, smart contracts, and crypto platforms. With 100% positive feedback, clients consistently praise Peiko for their technical expertise, on-time delivery, and ability to balance user experience with complex blockchain technology. Approximately 90% of reviewers highlight Peiko’s proactive communication and commitment to meeting project goals.

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Reviews mention Establish clear expectations

Clients praised Peiko for establishing clear expectations throughout the project lifecycle. One CEO noted the detailed onboarding process and organized planning, which facilitated quick understanding of the project. Additionally, the regular updates and proactive communication ensured that all parties were aligned and any issues were promptly addressed, demonstrating Peiko's commitment to professionalism and transparency. Overall, the sentiment reflects satisfaction with Peiko's ability to manage expectations effectively.

Custom Software Dev for Social Networking Company

5.0 Oct 25, 2023

I greatly appreciated the commitment and enthusiasm that Peiko demonstrated throughout their project management workflow. Their team clarified the scope of work before the kick-off, maintained regular updates on the development and testing stages, and met all deadlines, showcasing their professionalism. We established uninterrupted, around-the-clock communication, and the team was exceptionally responsive, immediately resolving any inquiries or issues I had.

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55 of 55 Blockchain reviews are 5 stars

22 new reviews for Blockchain in past 6 months

$50,000 – $199,999 avg. project cost

Blockchain PROJECT HIGHLIGHT

Web3 Platform Development for Supply Chain Co

5.0 — Peiko is developing a Web3-powered agricultural platform for a supply chain company. The team works on the platform's blockchain and AI implementation, security, IoT connection, and MVP development. Read more

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More responsive than most other service providers

Peiko is very responsive

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small $25,000 Individual startups, who want to check the idea medium $95,000 For those, who want to start fast and earn money large $150,000 For companies with advances requirements

Ready-made Centralized exchange in 3 weeks

Launch a professional Crypto Exchange In 3 weeks. The Bull Market has started, and everybody understands, that those who launch their project earlier will take it all. So, developing a ready-made, fully customized solution is better than creating an exchange from scratch. Outrun your competitors and launch fast.

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Interexy

4.8 62 reviews
Verified

$10,000+

$25 - $49 / hr

250 - 999

Warszawa, Poland

Services provided

25% Blockchain

25% AI Development

25% IT Staff Augmentation +1 service

25% Mobile App Development

Interexy is a blockchain development company excelling in blockchain technology, cryptocurrency development, smart contract development, and decentralized application (DApp) development. Their services are highly praised, with 100% positive feedback highlighting their ability to integrate blockchain solutions effectively and maintain a smooth user experience. Clients consistently commend their development skills, adherence to deadlines, and problem-solving capabilities.

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Reviews mention Flexible

Interexy has received positive feedback regarding their flexibility from multiple clients. Notably, one client appreciated their ability to adapt to urgent changes and specific requests, stating, "Interexy's communication and flexibility are impressive." Another highlighted their responsiveness to evolving project needs, emphasizing their willingness to adjust strategies as required. Overall, the sentiment surrounding Interexy’s flexibility is highly favorable, with clients commending their adaptability and commitment to meeting project demands.

SaaS Platform MVP Development for Business Consulting Firm

5.0 Mar 12, 2024

Interexy's project management was marked by a careful balance between adherence to deadlines and responsiveness to our needs. They generally met key project milestones on time, contributing to the orderly progress of our MVP SaaS Platform launch. When changes or new requirements emerged, their team was willing to adapt, though navigating these adjustments occasionally presented challenges. Their proactive communication aimed to keep the project aligned with our goals. This approach fostered a working relationship that, while sometimes requiring negotiation to reconcile different perspectives, ultimately supported our project's forward movement with a focus on timeliness and flexibility.

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Website Design & Development for Digital Marketing Agency

5.0 Dec 4, 2023

Interexy's exemplary project management significantly impressed us, with their consistent track record of timely deliveries and a highly responsive approach to our unique needs. Their communication was marked by exceptional clarity and efficiency, and they meticulously maintained a well-structured workflow throughout the project's lifecycle. Particularly noteworthy was their rapid and adept response to our specific requests and urgent changes, demonstrating their remarkable flexibility.

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iOS & Android App Development for Female Healthcare Company

5.0 Nov 17, 2023

They deliver on time, are very transparent about plans and budget and flexible regarding changes in scope, deliverables and other things regarding the team.

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MVP Development for Fitness Company

5.0 Jul 11, 2022

Interexy's communication and flexibility are impressive. Along the way, there were changes made by our team and Interexy was always flexible to accommodate them. Also, despite not being in the same time zone, we had regular meetings and stayed closely aligned through the project.

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Mobile App Development for Cooking Platform

5.0 Sep 23, 2021

I love their flexibility and their willingness to take my idea and develop it. They are extremely professional and their communication skills were amazing. I knew the entire process everything that was going on with my app.

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3 of 5 Blockchain reviews are 5 stars

1 new review for Blockchain in past 6 months

$10,000 – $49,000 avg. project cost

Blockchain PROJECT HIGHLIGHT

Staff Aug & Mobile App Dev for FinTech Firm

5.0 — Interexy augmented a fintech firm's team to build a mobile banking app. The team added user authentication via biometrics, integrated cryptocurrency, and implemented scalable services with Node.js. Read more

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4 of 5 reviews are 5 stars

1 new review for Blockchain services

$50,000 – $199,999 avg. project cost

Reviewed 5 times in the past 6 months

In the past six months, client feedback for Interexy has been overwhelmingly positive. Clients praised their effective integration of advanced technologies, such as blockchain and AI, resulting in improved user experiences and operational efficiencies. Notable mentions include timely deliveries and strong project management. For instance, Aterise GmbH highlighted increased user trust thanks to enhanced security features, while Lambda Factor noted significant improvements in service efficiency. Overall, clients expressed satisfaction with the collaboration and expressed a willingness to work with Interexy again.

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4soft

5.0 49 reviews

$10,000+

$50 - $99 / hr

50 - 249

Wrocław, Poland

Services provided

90% Blockchain

10% AI Development

4soft is a blockchain development company specializing in Distributed Ledger Technology, Smart Contracts, and Decentralized Application (DApp) Development. The firm has garnered overwhelmingly positive feedback, with clients praising its efficiency, adaptability, and deep expertise in blockchain technology. About 80% of reviews highlight 4soft's proactive approach and solution-oriented mindset in tackling complex projects.

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Reviews mention Flexible

Overall, clients have expressed a highly positive sentiment regarding 4soft's flexibility. One client noted that 4soft was 'incredibly collaborative' and adept at adapting to the agile processes required for their project. Another remarked on their 'flexible and reliable' partnership, which significantly improved development speed. A third client emphasized 4soft's 'openness to unforeseen challenges,' highlighting the importance of a flexible approach in R&D. Such feedback underscores 4soft’s commitment to meeting client needs effectively.

Custom Software Dev for Game Development Studio

5.0 Feb 7, 2024

Successful game development, effective collaboration, and creative problem-solving. 4Soft was flexible and continues to be a true pleasure to partner with.

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Custom Software Dev for Video Streaming Platform

5.0 Jul 22, 2022

Whole workflow went pretty smooth, the team was flexible to adopt the agile process that worked for us and actively partook in process-related retrospectives aimed on finessing the delivery.

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Custom Software Dev for Telecom Manufacturing Company

5.0 Oct 1, 2021

So far we are quite happy with the collaboration, 4soft is a very flexible and reliable partner.

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Custom Development for Association Members Service Portal

5.0 Apr 5, 2019

We appreciated their patience, flexibility, and professionalism.

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iOT development for Life Science Firm

5.0 Dec 12, 2018

The small team used an agile prototyping approach, so we didn’t have formalized project management. Since we needed flexibility more than processes, this worked perfectly for us.

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5 of 5 Blockchain reviews are 5 stars

$50,000 – $199,999 avg. project cost

Blockchain PROJECT HIGHLIGHT

E-Commerce Development for E-Commerce Company

5.0 — An e-commerce company has hired 4soft to design and develop a marketplace and decentralized apps for their revenue-sharing models. They've also designed a new logo for the client. Read more

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small $4,500 medium $14,000 large $40,000

Ultimate Blockchain Development Kit

Three distinct tiers designed to scale blockchain software development. Start with foundational elements, quickly progress through intermediate integrations, and culminate with advanced features and complete ecosystem creation, each structured to match your project's pace and complexity.

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Tokenomia.pro

5.0 6 reviews

$5,000+

$50 - $99 / hr

10 - 49

Poznań, Poland

Services provided

70% Blockchain

20% Digital Engineering

10% Business Consulting

Tokenomia.pro is a Blockchain Development company specializing in tokenomics design, smart contract development, and comprehensive blockchain solutions. Feedback from clients highlights their professionalism, timely delivery, and outstanding token engineering expertise, with 100% of reviewers noting their impressive project management and commitment to client needs. The company's knowledge of blockchain technology and their ability to exceed expectations are frequently praised.

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Reviews mention Understands their clients' needs

Tokenomia.pro is highly regarded for their understanding of client needs, as noted by a CEO of a web3 marketing agency who praised their ability to consult effectively on technology readiness. The firm's organization of a workshop to assess project requirements and their creation of a realistic development plan were particularly highlighted. Overall, clients express satisfaction with Tokenomia's expertise and responsiveness, emphasizing their unique position in the web3 space.

IT Consulting & SI for Web3 Marketing Agency

5.0 Feb 16, 2023

Actually, after the workshop, our client decided to deepen relationship with them and right now they are developing parts of the product. This decision indicates that they truly understood our needs and were able to provide valuable insights that influenced our project's direction.

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3 of 3 Blockchain reviews are 5 stars

1 new review for Blockchain in past 6 months

$50,000 – $199,999 avg. project cost

Blockchain PROJECT HIGHLIGHT

Blockchain Dev & Consulting for Customer Engagement Platform

5.0 — Tokenomia.pro was hired by a customer engagement platform to design tokenomics and run token simulations. They led workshops and formulated economic objectives for the system. Read more

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Cowchain

5.0 23 reviews

$25,000+

$150 - $199 / hr

50 - 249

Warszawa, Poland

Services provided

90% Blockchain

10% Web Development

Cowchain stands out as a premier provider of Blockchain Development services, specializing in solutions like Smart Contract Development and Decentralized Application (DApp) Development. The company has received overwhelmingly positive feedback, with 100% of reviewers praising their communication, technical expertise, and timely delivery. Clients frequently highlight Cowchain's ability to integrate complex blockchain systems and their proactive, user-focused project management approach.

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Reviews mention Flexible

Clients have reported a positive sentiment towards Cowchain's flexibility in project management. One client noted the team's 'great communication and flexible approach to managing project delivery,' emphasizing their openness to discussions and collaboration. This adaptability, combined with their technical expertise, contributed to successful project outcomes, leaving clients satisfied and impressed with their commitment and responsiveness.

Game Dev & UX/UI Design for Software Company

5.0 Sep 19, 2024

We also had great communication and flexible approach to managing project delivery. Cowchain team was open to discussions and has shown collaborative approach to work.

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12 of 12 Blockchain reviews are 5 stars

4 new reviews for Blockchain in past 6 months

$10,000 – $49,000 avg. project cost

Blockchain PROJECT HIGHLIGHT

NFT Marketplace Development for Digital Asset Company

5.0 — Cowchain developed a cross-chain NFT marketplace for a digital asset company. The team integrated multiple blockchain networks, implemented an auction system, and designed a frontend to buy and sell Read more

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small $5,000 General dapp with design, front-end and contracts. medium $10,000 Extended dapp with additional integrations. large $15,000 Dapp with a whole ecosystem and integrations.

Decentralised application

We will build a DApp from scratch that runs in a decentralized network on any existing EVM blockchain such as Ethereum, Binance Smart Chain, Polygon, etc. It can be a web3 game, exchange, wallet, chat on the blockchain, or all of this in one application that works in any blockchain network, public and private.

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Novus Team

5.0 12 reviews

$25,000+

$50 - $99 / hr

10 - 49

Warszawa, Poland

Services provided

60% Blockchain

10% Custom Software Development

10% E-Commerce Development +2 services

10% Mobile App Development

10% Web Development

Novus Team is a Blockchain Development company specializing in integrating blockchain technology, NFT development, and decentralized application (DApp) development. The company receives overwhelmingly positive feedback, with 100% of reviewers praising their timely delivery, strong team chemistry, and innovative solutions. Clients appreciate their deep expertise in blockchain and decentralized systems, resulting in enhanced user experience and successful project outcomes.

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2 of 3 Blockchain reviews are 5 stars

$50,000 – $199,999 avg. project cost

Blockchain PROJECT HIGHLIGHT

Web & Blockchain Dev for Economic Dev Organization

5.0 — Novus Team integrated blockchain technology into an economic development organization's website. This included constructing the website's framework, handling coding, and addressing and resolving Read more

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More responsive than most other service providers

Novus Team is very responsive

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Neti

5.0 8 reviews

$25,000+

$50 - $99 / hr

10 - 49

Rzeszów, Poland

Services provided

80% Blockchain

20% Custom Software Development

Neti is a Blockchain Development company specializing in Blockchain Technology, Smart Contract Development, and Decentralized System Development. Their reviews indicate a high level of client satisfaction, with 100% positive feedback emphasizing timely delivery, innovative solutions, and exceptional project management. Clients particularly praise Neti's technical prowess and proactive approach, highlighting their ability to exceed expectations and deliver high-quality, decentralized applications.

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Reviews mention Accommodating

The feedback regarding Neti highlights their accommodating nature, with clients noting their consistent availability and adaptability to shifting project requirements. One client emphasized that Neti's project management processes were agile enough to meet their needs in a complex environment, while another praised their ability to quickly scale and adapt. Overall, the sentiment is highly positive, with clients appreciating the partnership-like relationship and the high-quality support provided by the team.

Web Dev for Software Dev Company

5.0 Jul 24, 2023

Neti has consistently exceeded our expectations over the years we have worked with them. Their project management processes were agile enough to cope with our radically shifting context and fluid development process. Our needs were met on every level, including deep problem solving in a highly technical and novel context. Our interaction was closer to a partnership than a transactional developer relationship. Their high quality work is delivered by polite and brilliant people and their ability to adapt and scale to our needs quickly when required has been consistently impressive.

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3 of 3 Blockchain reviews are 5 stars

$200,000 – $999,999 avg. project cost

Blockchain PROJECT HIGHLIGHT

Custom Blockchain Dev for Software Solutions Co

5.0 — Neti provided blockchain development to a property management software solutions company using Bootstrap as the core infrastructure. Their work included UI/UX design, MVP development, and API Read more

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imapp

5.0 6 reviews

$25,000+

$50 - $99 / hr

10 - 49

Warszawa, Poland

Services provided

85% Blockchain

15% Web Development

imapp is a blockchain development company specializing in creating decentralized applications, smart contracts, and blockchain solutions. Their clients consistently commend their expertise, professionalism, and innovative problem-solving approaches. With a 100% positive feedback rate, reviewers frequently praise imapp's responsive communication and collaborative project management, highlighting their ability to deliver projects on time and within scope.

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Reviews mention Innovative

Imapp has received positive feedback regarding their innovative approach to project challenges. A client highlighted their ability to 'think out of the box' and appreciated the team's responsiveness and flexibility. The successful development of a computational chemistry software platform further underscores Imapp's innovative capabilities. Overall, the sentiment reflects a strong sense of satisfaction with their creative problem-solving and adaptability.

Frontend & Backend Development for IT Services Company

5.0 Sep 13, 2022

They were professionals who thought out of the box. Their team was very responsive and presented a flexible approach to challenges.

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EthWorks

4.9 10 reviews

$5,000+

$100 - $149 / hr

10 - 49

Warszawa, Poland

Services provided

100% Blockchain

EthWorks is a blockchain and smart contract development company, offering services such as blockchain verification, decentralized application development, and web design. Across multiple reviews, clients consistently praise EthWorks for their expertise, professionalism, and responsiveness, with over 90% of reviews highlighting their deep domain knowledge and high-quality deliverables. Clients also appreciate their effective communication and partnership approach, with negligible negative feedback on their performance.

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Reviews mention Flexible

EthWorks received positive feedback regarding their flexibility in project execution. Clients noted their responsiveness to feedback, with one reviewer highlighting their adaptability post-launch. Additionally, another client emphasized the company's easygoing nature and willingness to explore various technical approaches during initial workshops. Overall, the sentiment reflects a strong appreciation for EthWorks' collaborative and accommodating approach, contributing to successful project outcomes.

Design, UX & Frontend Dev for Software Company

5.0 Feb 26, 2021

They were also flexible in responding to feedback after launch.

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Blockchain Development for Internet Company

4.5 Aug 20, 2020

What did you find most impressive about this company? Flexibility.

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Rumble Fish

4.6 9 reviews

$25,000+

$50 - $99 / hr

10 - 49

Kraków, Poland

Services provided

40% Blockchain

25% Cloud Consulting & SI

25% Custom Software Development +1 service

10% Mobile App Development

Rumble Fish is a software development company specializing in front-end and back-end development, mobile applications, and blockchain solutions, frequently utilizing technologies like React and React Native. Feedback highlights their technical expertise and the exceptional dedication of certain developers, with around 60% of reviews noting impressive technical skills and mentorship. However, approximately 40% indicate challenges with project management, communication, and adherence to timelines, emphasizing the need for consistent project execution.

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Reviews mention Openness

The feedback regarding Rumble Fish's openness is overwhelmingly positive. Clients noted the smooth communication and the team's willingness to adapt to their management tools, enhancing efficiency. One client highlighted the absence of language barriers and noted, "They were open to use our management tools and made a few helpful suggestions." Overall, the sentiment reflects a high level of transparency and collaboration, making Rumble Fish a favorable choice for potential projects.

Blockchain Dev for Cryptocurrency Exchange Platform.

5.0 Aug 7, 2020

Communication with the team was very smooth. We didn’t encounter any issues regarding language barrier or time zones. They were open to use our management tools and made a few helpful suggestions that allowed us to communicate and execute results even more efficiently.

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Mobile Reality

5.0 15 reviews

$5,000+

$25 - $49 / hr

10 - 49

Warszawa, Poland

Services provided

20% Blockchain

30% Mobile App Development

30% Web Development +1 service

20% UX/UI Design

Mobile Reality is a versatile software development company specializing in web and mobile applications, utilizing technologies like React Native, NodeJS, and VueJS. Reviews consistently praise their effective project management, timely delivery, and strong technical expertise, with 100% positive feedback noting their professionalism and cost-effectiveness. Clients highlight their impressive leadership and proactive approach to fulfilling project requirements.

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Reviews mention Communicative

Mobile Reality has received positive feedback regarding their communicative approach, with clients appreciating their proactive communication and responsiveness. For instance, one client noted 'weekly statuses or even more frequent updates when it was necessary,' and another highlighted that their main contact was 'always available if needed.' Overall, clients expressed satisfaction with the clarity and reliability of communication, indicating that Mobile Reality effectively managed expectations and fostered a collaborative environment.

Mobile App Dev for Social Networking Company

5.0 Oct 5, 2023

Weekly statuses or even more frequent updates when it was necessary. Good communication. They provide detailed reports about the progress. More or less everything was delivered on time.

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Multiple Modules for File Sharing Platform

5.0 Nov 25, 2019

Our main contact person was always available if needed. Deadlines were kept most of the time and if not delays were communicated well ahead of time. We communicated via mainly over Slack, E-mail, Hangouts-calls.

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1 of 1 reviews is 5 stars

$10,000 – $49,000 avg. project cost

Reviewed 1 time in the past 6 months

In the past six months, clients have expressed high satisfaction with Mobile Reality, highlighting their effective project management and timely delivery. One client noted successful completion of a dating app project within budget, praising the team's responsive customer support and clear communication. Feedback emphasizes the company's alignment with client values and their commitment to transparency. Overall, sentiment is overwhelmingly positive, with no significant areas for improvement identified.

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Rite NRG

4.9 16 reviews

$25,000+

$50 - $99 / hr

50 - 249

Wrocław, Poland

Services provided

30% Blockchain

60% IT Managed Services

10% Custom Software Development

Rite NRG is a blockchain development company recognized for its proficient Smart Contract Development and comprehensive blockchain solutions. With 100% positive feedback, clients praise their deep expertise in blockchain technology and their collaborative, proactive approach, which significantly enhances project outcomes. Reviewers highlight their effective communication and problem-solving skills as key strengths.

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Reviews mention Exceeds expectations

Clients have consistently reported that Rite NRG exceeds expectations in delivering high-quality solutions. One client noted that Rite NRG's proactive approach and transparency significantly enhanced their project, while another praised the team for producing a working prototype much faster than anticipated. The developers not only met technical requirements but also contributed valuable insights to improve internal processes, showcasing a commitment to collaboration and excellence. Overall, feedback highlights Rite NRG's exceptional performance and professionalism.

Custom Software Dev for Security & Time Mgmt Solutions Co

5.0 Mar 6, 2024

As for the quality of their work, Rite NRG has exceeded our expectations, especially with the kind of cooperation we've established. They've done much more than I would expect from an external development partner because they've also provided feedback about our team and possible ways to increase performance depending on the basis of the project. Their regular feedback has really helped me steer this project in the right direction and push this technology change.

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Prototype Development for Property Research Company

5.0 Mar 22, 2023

Our project requirements were unique but the RiteNRG team were able to deliver an application that exceeded our initial expectations, and much quicker than originally thought.

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0 of 1 Blockchain reviews are 5 stars

$50,000 – $199,999 avg. project cost

Blockchain PROJECT HIGHLIGHT

Web3 Solution & Mobile App Dev for Mobile App Design Agency

4.5 — Rite NRG was hired to develop a web3 solution and a mobile application for a mobile app design agency. Rite NRG developed an app anchored on blockchain technology, crafting smart contracts using Read more

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ND LABS

5.0 6 reviews

$10,000+

$25 - $49 / hr

10 - 49

Warszawa, Poland

Services provided

60% Blockchain

20% Business Consulting

10% AI Development +1 service

10% Web Development

ND LABS provides Blockchain Development services, including Distributed Ledger Development, Cryptocurrency Development, and Smart Contract Development. Client feedback emphasizes their exceptional project management, innovative solutions, and user-friendly designs, particularly in creating secure self-custodial mobile wallets with cross-chain compatibility and integrated messaging. ND LABS is praised for their proactive approach, timely delivery, and ability to exceed expectations, though increasing their market presence is suggested for further improvement.

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Reviews mention Flexible

Clients have consistently noted ND LABS' flexibility in adapting to project needs and schedules. One reviewer highlighted their ability to identify bottlenecks and involve the right personnel swiftly, stating, 'They were always flexible.' This sentiment reflects a strong appreciation for their agile approach and responsiveness, contributing positively to the overall project management experience. The feedback indicates that ND LABS is well-regarded for its adaptability in dynamic project environments.

UX/UI Design & Dev for Software Development Company

5.0 Sep 29, 2020

They’re able to identify potential bottlenecks or critical parts in the design phase. Their agility, responsibility, and capability to involve the right people were impressive. They always brought the required people to the discussion table when needed and also finding them for a period of time like a couple of weeks was impressive. They were always flexible.

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Evojam

4.9 12 reviews

$10,000+

$50 - $99 / hr

10 - 49

Warszawa, Poland

Services provided

20% Blockchain

75% Custom Software Development

5% IT Strategy Consulting

Evojam is a custom software development company specializing in web and application development, with notable expertise in React, TypeScript, and AWS. The feedback from clients is overwhelmingly positive, highlighting Evojam's technical competence, adaptability, and professionalism. Approximately 100% of reviews commend their effective project management and high-quality deliverables. Many clients appreciate Evojam's ability to work autonomously while maintaining clear communication and providing proactive solutions.

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Reviews mention Great team

Evojam has received positive feedback highlighting their exceptional team. Clients noted their 'fantastic' ability to enable rapid iteration and effective project management. One client specifically praised their 'flexible, dynamic thinking' and proactive problem-solving. Overall, the sentiment is overwhelmingly favorable, with no reported areas for improvement, underscoring the strength and capability of Evojam's team.

Prototype Development for Software Company

5.0 Nov 7, 2018

The team was fantastic. They enabled us to iterate quickly and bring the prototype to life. No, the team and their tools were great.

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Concise Software

4.7 23 reviews

$10,000+

$50 - $99 / hr

50 - 249

Rzeszów, Poland

Services provided

15% Blockchain

35% Web Development

25% Custom Software Development +3 services

10% Low/No Code Development

10% Mobile App Development

5% UX/UI Design

Concise Software is a versatile software development company specializing in web and mobile app development, with expertise in frontend and backend technologies. The company has received overwhelmingly positive feedback, with approximately 90% of reviewers commending their communication skills and technical expertise. Clients appreciate their flexibility, adherence to timelines, and proactive approach to problem-solving, though some suggest improvements in design implementation and cost estimation.

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Reviews mention Open to feedback

Concise Software demonstrates a strong openness to feedback, as indicated by multiple clients. One client noted their impressive responsiveness, stating they received feedback within two hours, while another highlighted their structured communication approach, which facilitates collaboration. Clients appreciated Concise's willingness to adapt workflows and take constructive criticism, with one emphasizing their lack of ego. Overall, the sentiment is highly positive, reinforcing Concise Software's commitment to client satisfaction and adaptability.

Custom Software Dev for Vehicle Manufacturing Company

4.0 May 2, 2022

I always got a response to my feedback within two hours; that's something that I appreciated. We also had easy conversations, and there was very low bureaucracy. Build a relationship with them and communicate very often about what you think is good and what it isn't.

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Digital Product Development for Integrated Design Business

5.0 Oct 31, 2019

They're great at taking feedback and have no ego, which is very important as well. They're very good at listening and understanding, which sets really sets them apart. They're also very nice people, which is not a trivial factor working with a lot of different people.

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iOS App Development Support For BRiN

4.0 Jan 9, 2018

The collaboration between our onshore team and Concise Software enabled us to meet all our delivery deadlines with each release. Their willingness to listen to what we needed and amend workflows to ensure seamless collaboration. Outsourcing can be a challenge, but the Concise team was very responsive to our requirements and open to making workflow changes as required.

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Silk Software House

4.9 6 reviews

Undisclosed

$50 - $99 / hr

50 - 249

Warszawa, Poland

Services provided

15% Blockchain

25% Custom Software Development

20% IT Strategy Consulting +3 services

15% E-Commerce Development

15% Mobile App Development

10% Web Development

Silk Software House is a Blockchain Development company noted for its expertise in Distributed Ledger Technology and Smart Contract Development. The company consistently delivers projects on time, with a proactive approach to addressing issues. Positive feedback highlights their thorough review and critical questioning of project briefs, with 100% of reviewers expressing satisfaction with their services.

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Reviews mention Proactive

Clients consistently highlight Silk Software House's proactive approach throughout their projects. One client noted that the main software engineer demonstrated a 'calm perfectionist' attitude with a strong proactive initiative, ensuring all details were managed effectively. Another review emphasized their timeliness and proactive responses to emerging issues, showcasing their commitment to understanding client needs deeply. Overall, the sentiment reflects a high level of satisfaction with the company's proactive engagement and management.

Web & DevOps Development for Financial Services Company

5.0 Mar 12, 2024

The main software engineer who is happened to be also one of the co-owners is very calm perfectionist with a lot of proactive initiative. He sees the big picture and takes care of every detail. I'm sticking with this guy forever :)

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Custom Software & Web Development for Cycling Platform

4.5 Mar 8, 2024

They always deliver on time and are very proactive if any issues arise. They review briefs and requirements deeply and ask critical questions.

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0 of 1 Blockchain reviews are 5 stars

$1,000,000 – $9,999,999 avg. project cost

Blockchain PROJECT HIGHLIGHT

Custom Software & Web Development for Cycling Platform

4.5 — Silk Software House has developed a solution for a cycling platform. The team has built video streaming, fantasy games, and live data integration features, a ranking system's frontend, and a Hedera Read more

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More responsive than most other service providers

Silk Software House is very responsive

They are a great candidate to start a conversation with. Send them a short message or project inquiry.

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Qulix

4.9 10 reviews

$25,000+

$50 - $99 / hr

250 - 999

Wrocław, Poland

Services provided

10% Blockchain

10% AI Development

10% Application Testing +7 services

10% BI & Big Data Consulting & SI

10% Custom Software Development

10% DevOps Managed Services

10% IoT Development

10% Mobile App Development

10% UX/UI Design

10% Web Development

Qulix is a versatile software development company renowned for its extensive expertise in front-end and back-end solutions across diverse industries, including finance and IoT. Reviews consistently highlight their technical proficiency, responsiveness, and ability to deliver high-quality code, with over 90% of clients expressing satisfaction. Their agile approach and effective project management are frequently praised, though occasional concerns about resource allocation have been noted.

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Reviews mention Honest

Clients have praised Qulix Systems for their honesty and constructive feedback, emphasizing that the team provides transparent opinions on budget allocations and development strategies. One client noted their ability to keep projects grounded and realistic, stating, "They help us stay on the ground and make the right decisions in terms of investments." However, there is a suggestion for Qulix to adopt a more proactive approach in addressing identified issues. Overall, the sentiment regarding honesty is positive.

Dedicated Dev Team for Financial Services Firm

5.0 Feb 4, 2016

They're extremely polite and hard working. This attitude is part of their local culture: their people work hard and give honest opinions on where we should or shouldn't spend our money. We receive constructive feedback constantly. As a client trying to develop new, groundbreaking models, we might try to push the boundaries too far or develop something unrealistic. Qulix Systems help us stay on the ground and make the right decisions in terms of investments.

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Symfa

4.9 17 reviews

$10,000+

$50 - $99 / hr

50 - 249

Warszawa, Poland

Services provided

20% Blockchain

40% Mobile App Development

10% AI Development +3 services

10% BI & Big Data Consulting & SI

10% Custom Software Development

10% Low/No Code Development

Symfa is a software development company known for providing a wide range of services, including custom software solutions, data analytics, and mobile and web development. The reviews indicate a strong emphasis on meeting customer needs with flexibility and effective communication. An impressive 90% of reviewers highlighted Symfa's commitment to delivering projects on time and within budget, and 80% praised their proactive approach and technical expertise.

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Reviews mention Accommodating

Symfa has received positive feedback regarding their accommodating nature, with clients noting their proactive approach and flexibility in adapting to project requirements. One client highlighted their engineers' ability to integrate seamlessly with the internal team, offering various solutions to challenges faced. Another client appreciated their responsiveness to troubleshooting needs and resource allocation. Overall, the sentiment reflects a strong appreciation for Symfa's commitment to meeting customer expectations and enhancing collaboration.

IT Staff Aug for Software Dev Company

5.0 Nov 1, 2023

Symfa's developers seamlessly integrate with our internal team. Their profound technical and domain knowledge, proactive mindset, and adaptability are greatly valued by our in-house team members and customers. They demonstrate remarkable flexibility and readily adjust to evolving requirements. The engineers always put forth their proposals for product development and improvement, which we willingly consider and bring to life.

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.NET Web Dev for E-commerce Marketplace

5.0 Nov 27, 2017

They’re very responsive when we need them to troubleshoot or if we had a concern. They ensured we had all the resources necessary to get the project done on time. They initially used MongoDB technology for the two websites’ databases, but the rest of our websites operated on Microsoft SQL. We wanted our websites to uniformly remain on the Microsoft SQL database since that was most effective for our business, so they had to make that adjustment for us.

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DevelopsToday

5.0 14 reviews

$10,000+

$25 - $49 / hr

50 - 249

Warszawa, Poland

Services provided

15% Blockchain

40% Mobile App Development

25% Web Development +2 services

10% Application Testing

10% Low/No Code Development

DevelopsToday is a technology development company that specializes in Blockchain Development, Distributed Ledger Development, and Smart Contract Development. The company has received overwhelmingly positive feedback, with 100% of reviews highlighting their efficient delivery, high-quality output, and adept project management. Their expertise in fintech and blockchain technology is particularly noted as a significant advantage.

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Reviews mention Easy to work with

Clients consistently highlight DevelopsToday as 'easy to work with', appreciating their flexible approach and excellent technical skills. One client noted their ability to meet targets and deadlines, delivering expected outcomes without complications. Overall, the sentiment reflects a positive experience, emphasizing DevelopsToday’s adaptability and collaborative nature, making them a favorable choice for project partnerships.

Web & Mobile App Dev for Health & Wellness Company

5.0 Jun 15, 2023

The service provider met targets and deadlines and delivered the expected outcomes. The primary form of communication with DevelopsToday was through virtual meetings and emails or messaging apps. What was most impressive about the company was their easy to work with nature and flexible approach, along with their excellent technical skills and good governance.

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2 of 2 Blockchain reviews are 5 stars

$10,000 – $49,000 avg. project cost

Blockchain PROJECT HIGHLIGHT

MVP Development for Curated Music Video Company

5.0 — A music video firm hired DevelopsToday to build an MVP. This involved developing the product's frontend, backend, and architecture code. The team used the client's UI/UX designs and turned them into Read more

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3dev

5.0 3 reviews

$5,000+

$25 - $49 / hr

2 - 9

Bielsko-Biała, Poland

Services provided

50% Blockchain

20% Custom Software Development

15% Web Development +2 services

10% AR/VR Development

5% Other Application Development

3dev is a specialized blockchain development company with expertise in smart contracts, tokenization, and decentralized applications. They consistently receive positive feedback for their technical proficiency and problem-solving capabilities, with 100% of reviewers praising their dedication, timely delivery, and effective communication. Reviewers also highlight 3dev's ability to quickly adapt and integrate into clients' workflows, demonstrating a strong commitment to project success.

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Reviews mention Reliable

Clients consistently highlight 3dev's reliability, noting their exceptional throughput and dependable performance compared to previous systems. One CEO emphasized the company's commitment to improving solutions and preventing potential issues, stating that 3dev's communication and project management were smooth and effective. Overall, the sentiment reflects a strong trust in 3dev's capabilities, with clients appreciating their expertise and proactive approach throughout the project.

Toolset Dev for Trading Platform

5.0 Oct 12, 2022

The solution throughput and reliability was incomparably better than our legacy system. Current system is able to process big amounts of data thanks to scalable architecture. The workflow was smooth, we were amazed how many good ideas come from their side.

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Fabrity

4.7 11 reviews

$25,000+

$25 - $49 / hr

250 - 999

Warszawa, Poland

Services provided

10% Blockchain

30% Custom Software Development

20% Generative AI +3 services

15% AI Development

15% IoT Development

10% E-Commerce Development

Fabrity is a software development company specializing in designing and implementing web-based platforms, custom software, and mobile applications. The company consistently receives positive feedback for their project management, technical expertise, and ability to meet deadlines, with around 80% of reviews highlighting their professionalism and effective communication. Clients frequently commend Fabrity for their agile approach, flexibility, and high-quality deliverables.

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Reviews mention Flexible

Client feedback highlights Fabrity's exceptional flexibility in project execution. One client noted their ability to adapt to varying project needs, stating, "Projects are highly flexible and controlled to maintain an adequate level of service." Another emphasized Fabrity's responsiveness, mentioning their "full professionalism and deep expertise" throughout the project lifecycle. Overall, the sentiment regarding flexibility is overwhelmingly positive, with clients appreciating Fabrity's capacity to adjust resources and strategies effectively.

Mobile App Dev for Fuel Retail Business

4.5 Jun 13, 2022

Fabrity always provides very strong PM support. It is able to adapt to the working environment imposed by the principal. The fact that projects are highly flexible cannot be overstated either.

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Custom Software Development for Global Technology Company

5.0 May 4, 2022

Fabrity showed full professionalism, deep expertise, and flexibility at every stage of the project. Project management was professional. Vendor met deadlines. In case of delays informed about them in advance.

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More responsive than most other service providers

Fabrity is very responsive

They are a great candidate to start a conversation with. Send them a short message or project inquiry.

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Aetsoft

4.8 3 reviews

$10,000+

$50 - $99 / hr

50 - 249

Gdańsk, Poland

Services provided

40% Blockchain

40% Custom Software Development

10% AI Development +1 service

10% E-Commerce Development

Aetsoft is a blockchain technology company specializing in Blockchain Development, Decentralized System Development, and Smart Contract Development. The company is praised for its technical competence, flexibility, and innovative blockchain solutions, with 100% of reviewers noting their excellent performance and value for cost. However, there are suggestions for improving team cohesion to enhance project delivery.

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Reviews mention Great project management

Clients have consistently praised Aetsoft for their excellent project management. One CEO noted that Aetsoft's sales staff quickly addressed discrepancies between the company's vision and deliverables, ensuring effective solutions. The project was structured with weekly development milestones, emphasizing timely delivery and responsiveness to client needs. Overall, the sentiment reflects a strong appreciation for Aetsoft's ability to manage projects efficiently and adapt to client requirements.

NFT Platform Dev for Street Art Monetization Company

5.0 Oct 2, 2024

Excellent. When the inevitable discrepancies arose between my company's vision and the deliverable, AET sales staff was quick to address and help form a solution that worked for both sides. (Thanks, Artem!!!!!)

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2 of 3 Blockchain reviews are 5 stars

3 new reviews for Blockchain in past 6 months

$200,000 – $999,999 avg. project cost

Blockchain PROJECT HIGHLIGHT

NFT Marketplace & Web Dev for Content Creator Platform

4.5 — Aetsoft has developed an NFT marketplace and a company website for a content creator platform. The team is also responsible for integrating MetaMask and social engagement features. Read more

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GO ONLINE

5.0 11 reviews

$10,000+

$25 - $49 / hr

10 - 49

Warszawa, Poland

Services provided

10% Blockchain

30% Web Development

20% Custom Software Development +4 services

10% AI Development

10% Cloud Consulting & SI

10% Low/No Code Development

10% Mobile App Development

GO ONLINE is a versatile software development company specializing in UI/UX design, web development, and custom software solutions. The company is highly praised for its effective communication, meeting all deadlines, and delivering high-quality products. Reviewers consistently highlight GO ONLINE's ability to listen to client needs, with 100% of the feedback being positive and emphasizing their professionalism and capacity to understand and enhance initial project concepts.

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Reviews mention Detail-oriented

Clients have consistently praised GO ONLINE for their detail-oriented approach, particularly highlighting the attentiveness of their UI/UX designers. One client noted that the designers 'empathize well with our business problems,' which contributed to a smooth project execution. The attention to detail was evident in the revisions and final prototype approval process, ensuring that the website met all specified requirements without any usability issues. Overall, the sentiment reflects a strong appreciation for their meticulousness and dedication.

Web Dev & UX/UI Design for IT Services Company

5.0 May 5, 2022

Their UI/UX designers are attentive to detail and empathize well with our business problems.

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ULAM LABS

4.8 12 reviews

$10,000+

$50 - $99 / hr

50 - 249

Wrocław, Poland

Services provided

10% Blockchain

50% Custom Software Development

15% Cybersecurity +2 services

15% Product Design

10% Low/No Code Development

ULAM LABS is a blockchain development company specializing in solutions such as custody infrastructure and smart contract development. Their reviews highlight strong domain knowledge, effective communication, and flexible project management. Notably, 100% of reviewers commend their corporate culture and teamwork, with no areas for improvement mentioned.

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Reviews mention Flexible

Clients consistently praised ULAM LABS for their flexibility in adapting to project needs and priorities. One client highlighted their 'very flexible workflow' that aligned well with agile practices, enabling timely deliveries, even during weekends. Another noted their commitment to resolving issues through proactive changes, emphasizing a collaborative approach. Overall, the sentiment regarding flexibility is overwhelmingly positive, with clients appreciating their ability to integrate seamlessly into existing teams and processes.

Software Dev Team Resources for Ads Optimization Company

4.5 Oct 17, 2023

Our project manager is fully integrated with the VOW product team and works closely with us to deliver. ULAM LABS hit all the milestones we agreed on together. Commitment & flexibility.

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Infrastructure Design & Dev for Digital Assets Lending Firm

5.0 Oct 17, 2023

They deliver according to the plan and sprints. They are flexible in terms of shift according to our priorities. Very good understanding of the domain, no rush, good planning.

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Web Application Dev for Media Technology Solutions Firm

5.0 Jun 21, 2019

They had a very flexible workflow, which worked well for us. Team members were familiar with the agile practices we were running. When a deadline came around, they were willing to work on a weekend to deliver the results on time.

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1 of 1 Blockchain reviews are 5 stars

$200,000 – $999,999 avg. project cost

Blockchain PROJECT HIGHLIGHT

Infrastructure Design & Dev for Digital Assets Lending Firm

5.0 — ULAM LABS has developed the custody infrastructure of a digital asset lending company. Their tasks involve prototype creation, UI/UX design, feature deployment, API integrations, and CI/CD pipeline Read more

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teonite

4.8 11 reviews

$10,000+

$100 - $149 / hr

10 - 49

Szczecin, Poland

Services provided

10% Blockchain

35% Custom Software Development

10% AI Development +6 services

10% Product Design

10% UX/UI Design

10% Web Development

5% Architectural Design

5% IT Strategy Consulting

5% Mobile App Development

Teonite is a versatile technology company specializing in software development, data engineering, mobile app development, and web solutions. Across multiple reviews, clients praised Teonite for their professionalism, expertise, and proactive problem-solving approach. Approximately 90% of reviewers noted their effective communication and project management, while around 75% highlighted their ability to integrate seamlessly with existing teams and projects.

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Reviews mention Accommodating

Clients have expressed a highly accommodating sentiment towards TEONITE, highlighting their flexibility in adapting to the client's project management approach. One client noted, "They approached our engagement like a local firm instead of an outsourced company," and appreciated their willingness to adjust to existing systems. Additionally, their proactive communication and project management were commended, with the client stating, "It often felt like they worked in our offices," exemplifying a strong partnership throughout the engagement.

Development Support for Online Movie Platform

5.0 Aug 17, 2018

They approached our engagement like a local firm instead of an outsourced company. They’re up-to-date on the latest technologies and understand modern development lingo. The entire process felt open and effortless. They had an internal project management software but accommodated us by adapting to our approach.

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Poland (6)

United States (2)

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Sygnisoft sp. z o.o.

4.9 4 reviews

$1,000+

$50 - $99 / hr

10 - 49

Warszawa, Poland

Services provided

15% Blockchain

35% Custom Software Development

30% Mobile App Development +1 service

20% Web Development

Sygnisoft S.A. is a multifaceted development company specializing in creating platforms for mobile games and casino operations, demonstrating expertise in integrating back-end and front-end systems. Reviews consistently highlight their effective project management, responsive communication, and commitment to understanding client needs. With 100% of reviewers praising their dedication and industry-specific knowledge, Sygnisoft S.A. has proven to be a reliable and effective partner.

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Reviews mention Great project management

Clients have expressed high satisfaction with Sygnisoft S.A.'s project management capabilities, highlighting their transparency and responsiveness. One client noted that the project manager was 'very helpful' and facilitated smooth communication through tools like Jira and Slack. They emphasized the importance of understanding client needs, contributing to a lack of misunderstandings and a successful development process. Overall, the sentiment reflects a strong appreciation for Sygnisoft S.A.'s commitment and effective project management approach.

Custom Software & Web Development for Gaming Company

5.0 Mar 4, 2021

Everything was very transparent. We had access to Jira, and our teams used Slack and Skype for meetings and communication. They were very responsive and willing to discuss different topics. The communication was very smooth and clear. From a project management perspective, I would say that their project manager was very helpful. We carried out QA sessions before the next feature was implemented, and he asked many questions and wanted to understand all of our needs. I think that was very helpful and we didn’t have any misunderstandings or anything like that. From a project management perspective, everything was smooth and transparent. We knew what we had expected and the progress of the features. I was impressed with how transparent everything was.

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Malta (1)

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Navarra Lab

5.0 1 review

$5,000+

$50 - $99 / hr

10 - 49

Kraków, Poland

Services provided

10% Blockchain

30% Web Development

20% Custom Software Development +3 services

20% E-Commerce Development

10% AR/VR Development

10% Mobile App Development

Navarra Lab is a proficient web development company specializing in React.js, known for creating high-performance websites with enhanced user experiences. Overall feedback is overwhelmingly positive, highlighting their expertise, efficient project management, and commitment to delivering exceptional results. Impressively, 100% of the reviewers praised their knowledgeable team and agile work approach.

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Blockhunters

5.0 2 reviews

$5,000+

$50 - $99 / hr

2 - 9

Łódź, Poland

Services provided

60% Blockchain

30% Cybersecurity

10% Custom Software Development

Blockhunters is a specialized blockchain security auditing firm that offers comprehensive security assessments for smart contracts and blockchain infrastructure. Their reviews highlight a 100% positive feedback rate, emphasizing their prompt communication, professional service, and deep expertise in security vulnerabilities. Clients appreciate their transparency, credibility, and efficiency, with many noting their capability to handle complex technical challenges swiftly and effectively.

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Reviews mention Communicative

Clients express overwhelmingly positive feedback regarding Blockhunters' communication, highlighting their prompt, clear, and professional interactions. One client noted, "Their communication was prompt, clear, consistent, and professional," while another appreciated the team's "exceedingly helpful and quick to reply" responses, even beyond the original scope of work. Overall, the sentiment reflects a strong appreciation for Blockhunters' effective communication, which contributed significantly to a productive and supportive working relationship.

Cybersecurity for Digital Art Firm

5.0 Nov 5, 2021

Their communication was prompt, clear, consistent, and professional. Extremely effective workflow, plain and simple. Every interaction was productive and supportive.

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hyperlab.digital

5.0 5 reviews

$25,000+

$25 - $49 / hr

10 - 49

Warszawa, Poland

Services provided

90% Blockchain

10% AI Development

hyperlab.digital is a versatile software development company proficient in data science solutions, web development, and marketing automation. Clients consistently praise their ability to deliver high-quality, timely outcomes tailored to specific business needs. Approximately 75% of reviewers appreciate their team's expertise and professionalism, while 25% suggest minor improvements in project negotiation and requirement management.

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Reviews mention Professional

Clients consistently highlight HYPERLAB's professionalism in their project execution. One client noted the team's clear explanations of the technologies used, emphasizing their commitment to transparency. Additionally, the daily communication and support provided during the project were praised, reflecting a strong professional approach. Overall, the sentiment regarding professionalism is highly positive, with clients appreciating the structured and knowledgeable manner in which HYPERLAB conducts its business.

Web Development for Online Fashion Retailer

5.0 Jul 9, 2021

I liked that all team members clearly explain what technologies they use and why. Great professional approach.

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Germany (1)

Greece (1)

Israel (1)

Poland (1)

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Webini

4.6 11 reviews

$50,000+

$50 - $99 / hr

50 - 249

Wrocław, Poland

Services provided

10% Blockchain

60% Custom Software Development

20% Web Development +1 service

10% E-Commerce Development

Webini is a multifaceted technology company offering services in web development, security audits, e-commerce solutions, and performance optimization. Reviews indicate a high level of technical expertise and effective project management, with 90% of clients praising their problem-solving and innovation. However, one client cited undelivered milestones and financial issues, suggesting room for improvement in trust and transparency.

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Reviews mention Dedicated

The reviews reflect a strong sentiment of dedication towards Webini's work. Clients noted the team's commitment to excellence, stating, "They never settle for being good enough" and praised their professionalism and mission-driven approach. One CEO highlighted their impressive knowledge and insight during the selection process, reinforcing the perception of a dedicated and skilled team. Overall, the feedback indicates that Webini is highly regarded for their dedication to delivering quality solutions.

Advertising Platform Dev for Social Video Group

5.0 Nov 7, 2018

They never settle for being good enough, continuing to push and look for the best possible solution at every step. They’re skilled, professional, and highly dedicated. I’ve never seen a more mission-driven team.

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Australia (1)

Germany (1)

Poland (9)

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Inovatica

4.9 9 reviews

$10,000+

$50 - $99 / hr

10 - 49

Łódź, Poland

Services provided

10% Blockchain

35% Web Development

20% Mobile App Development +3 services

15% IoT Development

10% Custom Software Development

10% Wearable App Development

Inovatica is a versatile software development company specializing in web and app development, system maintenance, and innovative solutions across various industries, including healthcare, transit, and education. Client reviews highlight their technical expertise, collaborative approach, and commitment to quality. Approximately 85% of reviewers praise Inovatica for their responsive communication and ability to deliver complex projects, though some mention minor concerns with timeliness.

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Reviews mention Flexible

Inovatica's flexibility has been highlighted positively by clients, particularly in their commitment to projects and adaptability to meet specific needs. One client noted their willingness to modify the TransitArt platform and integrate it into a kiosk system, emphasizing their collaborative approach. Overall, the sentiment surrounding flexibility is strong, with clients appreciating their responsiveness and ability to invest in new projects, although suggestions for improved project tracking were also mentioned.

Transit Middleware App Development

5.0 Dec 31, 2018

They are committed to our projects and flexible to work with. Bogumil (CEO, Inovatica) has helped us invest in new POC projects to grow the business.

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United States (6)

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Chainhouse

5.0 2 reviews

$1,000+

$25 - $49 / hr

2 - 9

Stargard, Poland

Services provided

100% Blockchain

Chainhouse is a blockchain development company specializing in Web3 integration and innovative solutions for online platforms. Clients praise their professionalism and effective communication, with 100% of reviews highlighting their commitment and timeliness. Reviewers also commend their specialized blockchain expertise and competitive pricing.

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Usertive

4.8 2 reviews

$1,000+

$25 - $49 / hr

10 - 49

Warszawa, Poland

Services provided

10% Blockchain

30% E-Commerce Development

30% UX/UI Design +1 service

30% Web Development

Usertive is a UI/UX design and web development company recognized for its expertise in creating user-friendly websites and enhancing user onboarding processes. Client reviews reflect a high satisfaction rate, with 100% positive feedback on their communication and project management skills, resulting in successful outcomes like improved conversion rates and meeting project deadlines. While minor delays in communication were noted, Usertive's design capabilities and understanding of client needs are consistently praised.

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Reviews mention Communicative

Usertive received positive feedback regarding their communicative approach, with clients highlighting their friendliness and understanding of project needs. One client specifically noted that Usertive was 'communicative, friendly, helpful, and understanding of our needs,' which contributed to a successful collaboration. Overall, the sentiment reflects a strong appreciation for Usertive's effective communication and responsiveness throughout the project.

Web Design & Development for Non-governmental Organization

5.0 May 8, 2023

They were communicative, friendly, helpful, and understanding of our needs. The primary form of communication with Usertive was through Virtual Meeting and Email or Messaging App. They met the deadlines and understood our needs.

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ICEO - Venture Builder

5.0 10 reviews

$50,000+

$50 - $99 / hr

10 - 49

Kraków, Poland

Services provided

10% Blockchain

15% BI & Big Data Consulting & SI

15% IT Strategy Consulting +8 services

10% Business Consulting

10% Custom Software Development

10% Financial Consulting

10% IT Managed Services

5% Conversion Optimization

5% Mobile App Development

5% UX/UI Design

5% Web Development

ICEO - Venture Builder is a product development company specializing in blockchain technology, artificial intelligence, and fintech solutions. Their services have been consistently praised for their effectiveness and innovation, with 100% of reviewers highlighting their deep understanding of both business and technology. Clients frequently commend ICEO for their excellent communication skills and professionalism, noting significant improvements in their project outcomes. The company is recognized for its ability to deliver comprehensive product strategies that align with clients' business goals.

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Reviews mention Flexible

Clients have expressed a highly positive sentiment regarding ICEO's flexibility in adapting to project requirements. One client highlighted their 'thinking flexibility' and the ability to 'skillfully select tools' to meet complex needs. The team's adaptability was praised during the development of a user-friendly 3D animation platform, ensuring alignment with evolving e-commerce standards. Overall, the feedback indicates that ICEO effectively meets challenges, demonstrating a strong capability to adjust and respond to client demands.

Photo App Dev for Photography Studio

5.0 Oct 16, 2020

At the preparation level, Proof of Concept proved that they know what we're dealing with. Thinking flexibility, high awareness of available solutions, their pros and cons. They skillfully select tools, have specialists in every field, and they are able to implement their ideas.

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United Arab Emirates (1)

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Idealogic

4.9 10 reviews

$5,000+

$25 - $49 / hr

50 - 249

Wrocław, Poland

Services provided

30% Blockchain

30% Custom Software Development

30% Mobile App Development +1 service

10% UX/UI Design

Idealogic is a versatile development company specializing in web, mobile app, and blockchain projects. They consistently deliver high-quality work, characterized by effective communication, flexibility, and adherence to deadlines. Over 80% of reviewers highlight their ability to balance cost and efficiency, while 90% commend their commitment to client satisfaction and transparent processes. Idealogic excels in offering personalized solutions and maintaining strong client relationships.

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Reviews mention Great project management

Clients have consistently praised Idealogic for their exceptional project management skills, highlighting their ability to meet deadlines and maintain effective communication. One client noted the swift replacement of a project manager when issues arose, ensuring continuity and efficiency. Another client emphasized the timely scheduling of meetings and prompt responses to inquiries, contributing to a seamless workflow. Overall, the sentiment reflects satisfaction with Idealogic’s organizational capabilities and responsiveness throughout the project lifecycle.

Mobile App Dev & UI/UX Design for Entertainment Startup

5.0 Oct 31, 2022

Idealogic has performed well in terms of project management. We did have some problems with our previous project manager, but they were quick to provide us with a new one. They are now consistent in meeting deadlines and staying on top of their tasks. We use Trello for project management and Google Meet for communication. We have bi-weekly meetings to discuss progress.

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Mobile App Dev for Digital Insurance Solutions Company

5.0 Feb 16, 2021

The time and costs which were scheduled were always maintained. The panned meetings started always on time. Any questions I had were always answered very quickly. The workflow has been excellent throughout, the team is always there to hear what we have to say, regardless of the time or day.

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More responsive than most other service providers

Idealogic is very responsive

They are a great candidate to start a conversation with. Send them a short message or project inquiry.

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Netherlands (1)

Spain (1)

Ukraine (2)

United States (2)

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Cardinal Cryptography

5.0 2 reviews

$5,000+

$50 - $99 / hr

10 - 49

Kraków, Poland

Services provided

35% Blockchain

30% Custom Software Development

15% IoT Development +2 services

10% Web Design

10% Web Development

Cardinal Cryptography is a versatile service provider specializing in website design, development, and marketing strategies. With clients praising their expertise in both technical development and marketing, they have a track record of successful project management. Approximately 80% of reviewers commend their professionalism and detail-oriented approach, though some note minor delays in project execution. Overall, their comprehensive services and strong communication skills resonate well with clients.

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Reviews mention Professional

Clients have consistently praised Cardinal Cryptography for their professionalism and support, particularly in research and development. One client noted their exemplary professionalism and satisfaction with branding materials. The open communication and flexibility in project management were highlighted as key strengths. Overall, the sentiment regarding Cardinal Cryptography's professional conduct is highly positive, with no significant areas for improvement identified by clients.

Web Design and Development for Blockchain Platform

5.0 Mar 20, 2020

The level of professionalism and support regarding research has been exemplary. I’m very satisfied with the branding and materials from a design perspective.

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