Top Android App Developers in Eastern Europe

Native Mobile App Dev for Financial Services Co

Their project management was excellent. They were efficient and straightforward. We could rely on them to be proactive and do what we asked of them.

Web Dev & Digital Marketing for Restaurant

We clicked with Firefly Agency from the beginning, and they’ve been a responsive, flexible partner throughout the project. The team is excellent when it comes to communication, and they’re transparent about their capabilities. They meet deadlines and deliver work under budget, which is great.

E-Commerce Dev for Civilian Firearms Wholesaler

Their most distinguished asset is their cost-quality ratio. Additionally, we enjoy working with them because they easily understand my requirements and they’re able to forecast my needs in the future.

Web Development for Candy Production Company

Also, our development budget was limited and the company coped with this task perfectly.

Music Streaming App Dev for Music Rights & Permissions Firm

My project manager, Frank, was amazing. He took the project personally and treated it like his own company. The project management itself was done in Jira.

Custom Software & Web Dev for Education Management Company

They managed the entire project really tightly but not in a way that felt overly restrictive or unnecessarily process-driven. It was one of those scenarios where we knew where the project was on any given day. We understood where our sprints sat within the larger time frame.

Mobile App & Web Devs for Digital Cycling Platform

Project management’s one of MentorMate's strengths. At the beginning of the engagement, they said that we could be as involved as we wanted to be. The projects have run on time and on budget.

Web Dev & Design for Creative Arts Festival

They were great. We had daily stand up meetings on Google Hangouts and used Jiro to keep track of each sprint.

Web Dev for National Real Estate Network

Their resources are easy to work with and flexibly accommodate a fluctuating volume of responsibility. Our two project managers were effective and disciplined.

Web Development for Housing Review Platform

I gave them a rough idea of what I wanted and they did a great job translating it into a finished product. They're very responsive despite the difference in time zones and resolve urgent issues immediately. Their prices are reasonable and they're very responsive.

Custom Development for Ad Tech Tool

Zfort Group defined the specifications based on my requirements and wireframes and worked cooperatively. They delivered what they promised to complete, and I'm very happy with the result. As far as the core functionality and the user experience, they've met all my expectations. Zfort Group is very process oriented and helped me think more precisely about my objectives as the product owner.

Language Testing Web Development

I can tell them what the problem is from my perspective, and then they translated it into developer-speak. Then, the developers can work with what kind of documentation Zfort creates for them. I can send them an email, and I can speak to them, I can tell them what the problem is, and then they come back, and they offer me a variety of solutions that I can pick.

Custom CRM Solution Development for Insurance Company

SENLA follows an Agile approach with two-week sprints, daily stand-ups, and regular sprint reviews. Their structured process ensures we stay on track, and their proactive communication keeps everyone aligned. They’ve also been highly receptive to our feedback, making continuous improvements to meet our evolving needs.

SEO & E-Commerce Development for E-Commerce Company

Project management is one of the key benefits of the company. The company use very effective project management system which in addition is open to their clients who know all the time, how the things goes. Since 2022 it did not happen single time, that project manager did not react to missed call from us! In addition it happen very seldom, that we can not reach him anytime.

SEO & E-Commerce Development for E-Commerce Company

You are always and only in touch with people who are smart, friendly, value the relationship and are reliable. Their business analysts do great job too! We are in good hands with Argo22.

Web App Repair & Maintenance for Educational Data Company

In response to our needs, Codyua was proactive and flexible. Their collaborative approach made them feel like an extension of our team rather than just a service provider. They were quick to address any issues that arose and were open to feedback, making necessary adjustments to ensure the project's success.

Web Dev for Sporting Goods Store

They do very well in terms of project management. They’re always available and responsive, addressing all of our issues and queries and proposing further solutions. We communicate primarily through Jira and use Skype as needed.

Web Dev for RegTech Startup

One aspect that truly stood out about Zerocoder was their ability to grasp our unique challenges in the KYC domain. They provided innovative solutions tailored specifically to our business, ensuring a streamlined and seamless compliance process for our customers. Their team displayed a deep understanding of our industry and compliance needs, which significantly contributed to the success of the project.

AI Development for Advertising Company

The final deliverables not only met but exceeded our expectations, showcasing their commitment to quality and client satisfaction. Their ability to anticipate challenges, provide innovative solutions, and align with our strategic goals made the partnership extremely valuable. The company's commitment to maintaining open lines of communication and fostering a collaborative environment was outstanding. Their innovative mindset and willingness to explore new methodologies set them apart, enabling the creation of advanced and effective prototypes that exceeded expectations.

Custom Software & Mobile App Dev for Telecoms Company

Agile process demands developers who can tolerate change of plans and a can-do mentality, which all Binary-Studio members have. Through the project's lifetime when the team's composition had to be adjusted due to changes of technology, Binary Studio provided the right candidates very promptly. It is amazing that although all developers are very competent technically, they do not have strong opinions and are interested in the business value first. This is very rare in the software development world and makes life very easy.

IT Staff Augmentation for Software Development Company

Binary Studio provided us with a frontend engineer that had excellent communication skills and technical expertise that matched our needs. The engineer provided us with high-quality work that matched our local resources. Binary Studio did a great job of providing us with an engineer that matched our skill and experience requirements.

Web App Development & Design for Financial Platform

Firstly, I think the tech stack that they use internally — and specifically ASP.NET developers — is hard to find, so I’m impressed that they could provide those services. Their developers went above and beyond, looking to ensure that I was happy with their standard of work and that targets were being met. This isn’t always the case with other development partners.

Extended Dev Team for Digital Archive

The resources from Binary Studio have shown a high level of knowledge and been very proactive and solution-oriented. Their level of expertise and proactiveness stood out. How they welcomed us at the time of onboarding of the project.

Custom Offshore Development U.K. Field Services Firm

We’ve got 750 Argos stores running on a custom application that they’ve written from scratch. That particular deployment was without issue. They’ve been extremely impressed with its operability and cross-functionality, all of which were developed with Binary. They’ve got a serious talent pool there, which they’re always able to leverage if and when something emerges that our own developers can’t handle. Having that kind of expertise on hand is a huge value-add.

Web Dev for Real Estate Information Company

For each project, we show them the design and let them know what functionalities we need. They give us an expected timeframe they will accomplish this in, and then we start working. If there are feature requests, they will let us know if it will go outside of the timeframe or not.

Digital Onboarding Platform Dev for Commercial Bank

Most impressive:

1. They delivered everything as promised;
2. quality of deliverables - we basically spent very little time on bugs and fixes.

Web Design for Financial Company

The team was always in touch and quickly responded to changes. Nice team, large modern office, pleasant communication with us.

Web Application Development for IT Company

Good communication skills. It was very comfortable for the team to communicate together. I was impressed by their good communication and understanding of force majeures.

Custom Software Dev for Digital Marketing Agency

They ran the project well, integrated technology into the process, and were brilliant communicators. Such is the case, we have all been mostly remote through the process and I feel we have managed to operate as one team.

Market Research for Web Development Company

When Alexey took over from the project manager, all communication was perfect, with frequent updates. Alexey is always the best person to work with, that will solve the communication issue.

Staff Augmentation for Software Firm

The workflow was very effective. From day one, the work protocol was established, so that everyone could understand the expectations in terms of time tracking, commits, team meetings etc. There was also constant communication in place.

Custom Software Development for IT Services Company

As noted in my prior answer, what has most impressed has been the quality of the candidates provided - which is not only a function of the account lead, Oleg, fully understanding our needs, but also a function of the organisation's ability to source suitable and top talent in a short space of time.

Staff Augmentation for Software Dev Company

Their developers provided us with excellent services. They offered smart decisions, showed their independence and ability to deliver clean, scalable code.

Front- & Backend Dev for Web & Mobile App Dev Company

They worked the hours necessary to exceed expectations, taking the initiative on the project. I see them as a long-term partner. Because of their attitude and high-quality work, I’ve recommended them to others in my network.

Development Resources for CRM Software Provider

All tasks are done on their side; they’ve always delivered on time, and their code quality is good. Overall, they’re perfectly fine for our team.

Staff Augmentation for Software Development Company

The skill level of the developers they offered was really high.

Videobook Codebase for Creative Studio

Integration with our team members despite the nearshoring. Also the can-do attitude.

Mobile & Web App Dev for Forest Data-based Care Company

Notum proactively comes up with new ideas of how to develop these solutions. More importantly, these solutions always benefit us, rather than themselves. I really like that they're part of our team.

Network Software Core for Content Production Studio

The management was exactly how we wanted, timeline was reached on time.

Art & 2D/3D Animation services for iGaming Co

We were extremely satisfied with their project management. Stepico delivered all items on time, maintained clear communication throughout the project, and responded to our needs promptly and efficiently. Their flexibility and professionalism made the entire collaboration smooth and successful.

Mobile App Design & Dev for BioTech & Medicine Company

Everything was delivered on time. The contact with the FDT team was great and smooth. Everything has been prepared according to my needs, and I can even say that they exceeded them. They are extremely efficient and professional.

Mobile App Dev for Social Enterprise

Feedback from users is very positive about the professional look and feel and ease of use. Response was usually in a timely fashion. We used Slack and Jira for communication and project management as well as regular online meetings.

Website Development for Creative Agency

The workflow was very efficient. FDT stands out for their clear and professional communication, which is based on partnership, responsibility and trust. The work was effective and completed on time.

iOS/Android App Dev for Football Club

They’re a good group of professionals who try to understand our fans’ needs and our needs as a client. They were able to easily adapt to issues they found in our club regarding the backend and could work out solutions to make it work. Everything went well.

Web Platform Development for Fintech Start-Up

I was very impressed with their professionalism. They had a clear idea of how to complete the project. I really liked that.

Software Dev for IT & Cybersecurity Services Provider

JSGuru's team accomplished the discovery phase with impressive efficiency, surpassing our initial timeline expectations. The project advanced smoothly without any significant deviations from our deadlines, underscoring JSGuru's remarkable capacity to maintain oversight and coordination. As the project continues, our consistent success in meeting sprint objectives without major setbacks serves as a testament to JSGuru's exceptional organizational capability.

Mobile App Development for Energy Company

Their team resolved these matters even faster than we initially thought. Initial communication was intense and almost daily, but after a couple of weeks we switched to weekly reviews. It's also worth mentioning that our project documentation was really extensive and they delivered all agreed items in the set timeframe.

Custom Software Dev for Investment Consultancy Firm

We have certainly had delays in the rollout, but this is to be expected given the complexity of the project. JS have always been very responsive to our needs and changing requirements. They have responded in a timely and professional manner.

Mobile App Development for Party Organizing Platform

Simple and easy to use tools, like google drive spreadsheet, made the work easy and traceable - Daily touchpoints with PM and weekly steercos. Timeline were respected.

Web Development for Online Marketplace & Fundraising Company

From a project perspective, we have met the deadlines for all key milestones and are on track to launch. We use Trello for project tracking. Timelines are all met.

Mobile & Web App Development for Education Platform

Softonix was a trusted development partner for Plaito. Their team consistently demonstrated excellent communication and problem-solving skills. Their engineers are world class and communication from the team is fantastic. I couldn't have asked for a better group to work with.

Frontend Refactoring for Business Analytics Services Company

Softonix was a trusted development partner; they understood our business as much as we do. The team has excellent communication and problem-solving skills. Regular check-ins made sure that any issues were solved quickly.

Frontend Development for Software Development Company

They deliver on time and are very reliable and likable people. Communication is good, and we use Slack, Jira, and Google Meet as tools. We love them.

Frontend Web Dev for Vegan Food Delivery Platform

Their excellent engineers communicate well and execute our instructions and designs. Softonix's team is a part of our daily and weekly agile sessions, and we track their work via Google Sheets. Generally, they stay within budget and are very communicative about their workload.

Web App Development for HR Solutions Provider

Project management and communication is a strong asset of the Softonix team. They maintain regularly scheduled meetings, constantly keep us informed on what's working and what isn't, and are open about requesting changes. I highly value this level of communication.

Web App Development for E-commerce Startup

The engineers were methodical in abating the status every day, and were always on time for standups and other calls we had. I didn’t need to have a separate project manager because it’s very easy to work with them. We communicate primarily through Hangouts, Skype, and email.

Custom Development for Real Estate Management Firm

For an offshore company, QBurst's fluidness and understanding of American culture and business practices, even our colloquial terms in conversation, has made it extremely easy to work with them. I haven't had that experience with a lot of other outsourced companies that I've worked with in the past.

iOS & Android App Dev & Web Redesign for Event Ticketing Co

We would like the guys to share their experience in product design more. Because their experience was very useful for us. Qualified and reliable. They were able to explain difficult things in simple terms.

Mobile App Dev for IT Company

Stormotion is very proactive, and after gaining a deep understanding of your business they are fully capable of executing on a project independently. Their proactiveness in proposing reasonable technical improvements and providing tangible value was impressive.

Custom Software Development for Insurance Consulting Firm

I’m most impressed with Volo’s expertise. We had worked with a lot of providers, and none of them had the level of talent that Volo provides. We’ve thrown all kinds of problems their way, and they’ve always come up with a better solution than what we were originally thinking. As a matter of fact, when one of our competitors came up with a way of integrating their product with Office 365, a senior developer at Volo found a way to do the same in just under a week, which was very impressive.

Custom Software Dev for Medical Research Software Company

We didn’t have a platform before, but now we have one. They’ve delivered everything on time, within budget, and with high quality. They are a great partner to work with.

Web & Mobile App Dev for Healthcare Technology Company

Their work quality was good. I’d worked with many other freelancers and developers before, and Volo’s quality stood out. Our team didn’t have to deal with a ton of defects as far as coding was concerned. Overall, they performed well on the engineering side.

Web & Mobile App Dev of Commodity Trading Platform

Because we're an IT company without an in-house development team, Volo has been at the heart of everything. They’ve literally built every piece of our platform, and the quality of their work is striking. I’ve worked in IT for a long time and have seen an enormous volume of projects; to date, I’ve never seen a project with fewer bugs going live.

Mobile App Dev for International Film Festival

Halcyon Mobile has always been receptive to all our needs and has given us solutions and has implemented changes quickly for the app to be up to date, all this while delivering on time, or earlier in some cases. Our ideas have been met with great interest and, together, we figured out the best way to implement them. Moreover, Halcyon gave us new ideas to make the app more friendly and appealing to our target audience.

Mobile App Dev & Design for Religious Nonprofit

Their communication was proactive with frequent and consistent check-ins in the form of calls, emails, live meetings, comments, and feedback on Notion. Our main point of contact was our dedicated Project Manager, but we got to meet and know the whole team too. The project was based on a roadmap, milestones, and fixed scope, but the team was flexible and accommodating in terms of improvements in order to build a better product.

Backend Database & Mobile Tracking App Dev for Nonprofit

We have weekly status updates. If there are any delays, they are very proactive in communicating with us. They are staying within budget, are available and responsive when we reach out, and the experience is better than any I’ve experienced with previous providers. We use Basecamp and other tools, and communicate mainly via email.

Mobile App Development for Content Developer

They have never missed a deadline and have been quite accurate in financial projections. If there was need for timeline adjustment, they addressed it proactively. They also have an array of communication tools that don’t always require jumping on the phone. We have messaging systems and collaborative tools in place, in addition to the video and phone conferences. Project management is one of their strong suits.

Mobile App Design for E-Learning Company

What’s been excellent about Halcyon Mobile is that they really embedded themselves with us as a team. They don’t just sit there and take instructions; they have strong opinions about how things should work and are not afraid to share them. That’s added a lot of value to the project. The quality of Halcyon Mobile’s work and interaction with our team has been universally excellent.

Web Dev & Optimization for Colgate Palmolive Poland

Projects deliverables were delivered timely, and worked as intended. If necessary VMLY&R Poland was flexible to accommodate changing business requirements. VMLY&R Poland delivered projects timely, listened to our changing needs and provided meritorical feedback to help guide project to intended goals.

Website Dev & Maintenance for Betting Game Company

For our Head's was very important to meet the deadline and deliver MVP of website project on time. Seems Neat accepted this challenge and make this happened. The most I liked that they are very agile, and it didn't took to much time to deliver the results and receive a feedback on requests we found as important.

Mobile App Revamp for Mailing & Logistics Services Co

Coreteka's project management was efficient and well-organized. They consistently delivered items on time, adhering to the project timeline and ensuring that milestones were met as scheduled. Their flexibility and commitment to delivering high-quality results made the collaboration smooth and effective.

Web Design & Development for Consumer Goods Company

Their project management and communication skills are top-notch. Tasks were carried out under the close supervision of the manager, resulting in high-quality and timely completions. This consistent and efficient support greatly contributed to the success of our partnership.