Top App Developers in Eastern Europe

UX/UI Design for App Dev Company

Alexandra and Ekaterina were outstanding teammates throughout the collaboration. Before starting the project, Alexandra took the time to clearly define all milestones and requirements for the app redesign. The SolveIt team was always prompt in addressing my questions and feedback during the process. Ekaterina consistently brought her expertise to our weekly syncs, completing all planned tasks for the following week without any issues or delays. Their professionalism and attention to detail truly set them apart.

App UI/UX Design & MVP for Influencer Online Competition Co

The Solveit team has been the epitome of professionalism. They're very knowledgeable, great to collaborate with and deliver outstanding quality. They were on time with all deliverables, and the work to date has been outstanding. Their strategic thinking takes them to another level beyond the superlative UIUX work. Solveit has been head and shoulders above the others!

App Design & Dev Services for Sports Analysis Company

The team was very professional, delivering each milestone of the project on the agreed deadlines. They were also very good at managing sudden changes in the plan that presented themselves during the development. Their dedication and ability to bring our vision into a reality exactly how we imagined it, is the most impressive trait about SolveIt.

Mobile App Dev, Design & Maintenance for Software Company

SolveIT's response to any queries or questions is outstanding. Initially, I was quite nervous that all communication happens through the PM and that I didn't have direct contact with the development team, but exactly this made the experience even better. SolveIt was professional and always ready to help whenever something went wrong. I need them to investigate, they make us feel like we're their only client.

Development Services for International Web Company

Qualitative work delivered on time. They were on track with our expectations. Professional, to the point.

Mobile App Design & Dev for Consultancy Co

Our project manager, Tetiana, is one of the most professional I have encountered in my over 20 years in the field. Her listening and communication skills are outstanding, and she is proactive in offering valuable opinions. Tetiana demonstrates a deep commitment to our project's success, making us feel well taken care of and prioritized. Additionally, Ivan, one of the founders of Urlaunched, has been actively involved in our project, contributing to high-level project management and analyzing the project from various perspectives. Despite his extensive experience, he integrates seamlessly into the team with a humble approach, which is greatly appreciated.

Mobile App Development for Tech Startup

I was impressed with how fast the team was able to get up to speed with the product requirements, the speed of development is really impressive, and the quality of the product is high. All team members are very smart, they ask sharp questions and make recommendations which prove that they have a lot of experience in launching startups like mine. I really value our partnership and look forward to launching beta version of the app in Sep'21 and then launching MVP in Dec'21.

iOS App Development for Fire Safety Company

Droids on Roids treats me like part of their family, and they inform me about everything. We’re always connected through Slack, so I know what they’re doing, and I can reach out to them anytime. The team also tells me what we can improve in my application.

App Development for Christian Festival

Our relationship with Ackee has been fully remote, we are on opposite sides of the planet, but we feel as though they have partnered with us and are an important part of our team. They loved hearing our feedback and met our passion equally for delivering industry-leading products at a world-class level.

Custom Web Dev & Design for SaaS Platform

During my visit to their headquarters, I observed that their team consisted of young and highly knowledgeable professionals who not only possess expertise in their field but also know how to maintain a fun and enjoyable work environment.

Mobile App Dev for B2C Deliver Platform

Everyone at Wolfpack is technically knowledgeable but also able to break things down in terms a non-expert can understand. They have seemingly unending patience for explaining how and why things work, and they genuinely enjoy coming up with innovative solutions.

Online Booking Platform Dev for Short-Term Staffing Company

The timeline of the project was reviewed regularly and openly. TRIARE, LLC's staff works hard to deliver technically excellent work and to be approachable, communicable, open, and friendly. This is key to establishing a good working relationship over different timezones and cultures, and Triare do it well.

Android Coding for Mapping & Navigation Company

Overall, they’re always honest and open. TRIARE, LLC are great at opening honest dialogs; if they can’t do something, they let me know, and if they can, their team tells me within how many days and how much money.

UX/UI Strategy for Retail Execution Software Company

The most important thing was the cadence Infinum set up with us on weekly synchronization with me. This lets me know what’s happening on the ground level of each project. We meet weekly to do a recap and some reprioritization on the plan. They’re very agile and able to respond to changing needs.

Mobile App Dev for Smart Music App Startup

Additionally, they were willing to be adaptable and flexible, being open to changes and offering us the best solutions. Infinum was very easy to communicate with. The team was quick to understand exactly what we wanted, so we didn’t have a hard time explaining to them what needed to be done, which was incredibly helpful.

Native Mobile App Dev for Real Time Photo Requests

They were accommodating whenever we needed to make last minute changes. They were always willing to work with us. They also work very quickly, which I think was in part because we worked through a project manager.

iOS Mobile App Dev for Flight Booking Platform

Their ability to accommodate smaller-style, startup thinking was excellent. Many agencies assign a project manager who requires detailed definition and adds excess layers of complexity. With Infinum, we could make many decisions within one day. They are totally fine working with that ambiguity and are consistently able to wing it.

Mobile App Dev for Consumer Electronics Manufacturer

Whenever we need to scale up or down, they’re accommodating and do their best to match our needs. Unlike other agencies that just do what you say, Infinum will ask questions and push back in order to develop the best product possible, which we appreciate.

iOS and Android Dev for Software Company

They did very well in project management. We collaborated using Jira and Atlassian, and we had weekly and daily meetings.

Mobile App Dev & UX/UI Design for Reporting Software Co

Their project management has been very effective. We work in real-time, communicating primarily through Discord, which allows for quick and efficient information exchange. All reported issues are fixed at an express pace and are treated as a priority. We establish priorities together, ensuring that the most important tasks are completed first.

UX/UI Redesign for Automotive Company

Etnetera Flow kept the project on track from start to finish. Milestones were met as planned, and we got regular updates that made it easy to stay aligned. When we asked for changes or clarifications, they reacted quickly and adjusted without delays. Their mix of structure and flexibility made the whole process smooth and easy to follow. What stood out to us was how easy it was to work with the team at Etnetera Flow. They were open to feedback, took responsibility for their work, and stayed focused on what mattered.

Mobile App Development for Language-Learning Publishing Co

Nomtek boasts extensive domain expertise, particularly evident in the exceptional skills of our assigned delivery leader, who excelled in Flutter and cross-platform mobile app development. Their wealth of experience was instrumental in crafting a visually appealing and responsive MVP, featuring crisp graphics and smooth animations without compromising on performance.

Mixed Reality Development for Musical Artist

It's clear the team of nomtek are not only very experienced and talented but understand the creative vision of a project. They work within the limitations of tight deadlines, delivering a high standard of technicality, and great communication skills.

Mobile App Development for Wellness Technology Company

This strong connection has been a key factor in why we continue to partner with them. Their openness, accessibility, and commitment to our shared goals make it easy to work together, ensuring that every project runs smoothly and delivers the desired results.

Data Analytics for Analytics Startup

Additionally, Apzumi was comfortable working with a level of ambiguity. They balanced the commercial pressures of scoping a project accurately without putting pressure on me. I went in with my eyes open in terms of the limits of their knowledge, and they were very open and honest about what they were good at and where they had to learn.

Mobile App Development for Wellness & Fitness

They were innovative and solution-oriented—if an idea doesn't work as expected, they immediately offer alternatives and help us think through better options. What stood out most was how invested they were in the project. The quality of their work, their innovation, and their commitment to helping us succeed truly stood out.

Mobile & Software Dev for Digital Health Company

Kate (Project Manager) has been great at managing the project. She’ll explain the technical details to us in an easily digestible way and then will effectively relay our ideas to their developers. She’s held the team together and has been the driving force behind us achieving our goals for the project.

Web App Dev for Drum Retail Store

The communication was better than we have had with any other developers here in the UK, whenever we needed help we got it. KindGeek's project manager Viktoria is a diamond & put us at ease throughout the whole process. We are looking forward to working with KindGeek again.

Mobile Development for Fintech Company

KindGeek’s project management is impeccable: processes are polished and in place, the desire to help their partners and clients is always there, managers are experienced.

Web Application Code Base for Healthcare Solution Platform

Project management was one of their strong points. I mostly contacted one of their stakeholders and the project manager, and was happy with both interactions. They were flexible about communication tools, letting me choose the most convenient ones.

Frontend Dev for Software Development Firm

They were very professional in meetings with the client. They were able to follow up and manage all tasks to not only finish on time, but also to keep the project organized. The team communicated clearly throughout the engagement.

Website Development for Commercial Printing Company

The site is still in development, but Andersen is performing very well for the price, given that they're remote developers. Andersen's technical ability is excellent — they provide excellent developers for a reasonable price.

Software Quality Assurance for Anatomy & Medical App Firm

We told them the price that we were willing to pay for the project, and they were eager to make it work with us. They’re a small company and they really want to show what they can do, so be honest about your budget.

Mobile App Dev & Design for Fishing Gear Manufacturer

The mutual work was rather effective, we had a dedicated project manager, a UI/UX designer and a developer team who was working closely with us. The team delivered on time, and they were very helpful with the technical implementation. They guided us through the development process with confidence and met our goals with great precision.

iOS & Android App Dev & UI/UX Design for AI Development Firm

We worked in bi-weekly sprints. The items have been delivered according to plan despite the scope changing quite a bit throughout the project, but this was navigated very well and transparently.

Invoice Processing App for Business Service Firm

We had a very good relationship. They explained and adapted everything we asked for. They are very communicative and showed us all the options we needed to decide at every step.

Mobile App Dev for Travel Platform

Certainly, responding to emerging issues and blockers. Rather than dredging up problems, Mood Up immediately finds several solutions and presents them with their pros and cons. This ensures that the customer always has a transparent situation and several ways to get out of it. In addition, we value Mood Up for its clear, efficient communication. As a client, we were always 100% informed about what was currently happening on the project. This gave us a clear picture of the situation and what stage our application was at.

App Development for a Peer-to-Peer Marketplace

We used Jira to see reports about the project’s progress, so I had good transparency about their work. They were also willing to help us add a developer at a smaller cost to reach our goals — everything was ideal.

Mobile App Development for Social Reading Platform

Working with Techstack was smooth and efficient. The team delivered everything on time, and I was especially impressed by the transparency of their processes and the proactive, collaborative attitude of each team member.

AI & Mobile App Dev for Healthcare Company

The project was managed exceptionally well. They were attentive to quality, transparent in communication, and proactive in addressing any questions or challenges we had along the way.

Data Analytics Platform Dev for Business Consulting Co

The Techstack team's ability to combine deep technical expertise with business understanding was exceptional. They refined our concept and made it more scalable and user-friendly than we imagined. Their engineers think like product owners, which is rare and valuable. They’re reliable, transparent, and deeply invested in delivering solutions that make a real business impact.

DevOps Managed Services for Construction & Engineering Firm

Their team stuck to deadlines, communicated clearly through regular check-ins, and were quick to respond whenever we needed adjustments. They also paid close attention to both quality and timelines while staying within budget. We only ran into a few minor platform-specific quirks during the migration, but the team resolved them quickly and transparently.

AI Agents Dev for Software Solutions Co

On responsiveness, they were excellent: same-day replies on Slack/Jira, <24h turnarounds for priority asks, and proactive status notes when a dependency might affect timing. They listened, translated our SOP/policy needs into enforceable guardrails, and iterated fast—usually incorporating feedback in the next sprint. Overall: on-time delivery, transparent comms, and very adaptive to our requirements.

Custom Software Dev for Education Company

The team of 3 developers was amazing, they adapted to any circumstance of more or less guidance, and always delivered on time and within reasonable boundaries. Kiryl, Andrei and Yaraslau were always great at responding to our needs and asked for clarification or pushed back when necessary - for example, when there were perceived flaws in the planning. The three developers assigned to us were a pleasure to work with.

DevOps Staff Augmentation for E-Learning Platform

All the team are highly available and are good to work with. Leaders on the team manage their teams well, and have worked directly with internal developers and stakeholders when required. Their team is easy to work with, and they all continue to work hard.

Salesforce Development for Information & Events Company

They are knowledgeable and easy to work with. They provide a great recommendation. Very happy with what we accomplished so far with them.

Development for Water Utilities Analytics Platform

The workflow was great. The developers adopted our software development process and practices and participated as full members of the development team. They were really easy to work with at the end of the project.

Software Development for Security Firm

They're easy to work with and very communicative. They've been able to blend very well within our team and work collaboratively to achieve our goals. The engagement has been very successful overall thus far.

Mobile App Dev for Textile Computing Solutions Company

They managed the project well. We achieved the goals within the given timeline. The fast onboarding process was impressive.

AI Agent Dev for B2B Marketing Agency

Project coordination was handled by Mina Markos, the Account Manager, who kept communication smooth and transparent through Slack and weekly check-ins.

Their process was organized, efficient, and clearly structured, everything stayed on track from start to finish.

App Dev for Independent Game Developer

There team was always there to address anything amd provide honest feedback amd fixes. They can accommodate any level of app development.

Web Dev & Design for Social Media Company

It really felt like having my own team. Everyone is dedicated and loves their job.

Mobile App & Web App Dev for Construction Hiring Company

The design team and the UI team is phenomenal. We seem to work very well together. Their team is very smart and intuitive. They’re able to ask the right questions of us to make the app and the other products that they’re developing better.

Web Dev & Mobile App Consultancy for Travel Content Platform

Deliverability was in time and the way they work is very well structured. They responded perfectly to our needs. They are all very young, which is great because they have fresh ideas, and at the same time they are very very professional!

Frontend UI Dev for Messaging Platform

Items were delivered on time using an Agile Development process. Initial feature reviews took place with the Product Owner, and from there, feedback was quickly addressed and implemented to result in the final features being released. Communication was always professional and proactive.

Mobile App Development for Healthcare Company

Easy to communicate, and easy to have a dialogue around tradeoffs, designs, etc. They were pleased with the professional interactions. Beyond the quality of the work and the speed at which solutions were delivered, as an extra, benefited from the more formal deeper CS education.

iOS Application Dev for E-Learning Company

It’s very strong. We communicate every day. They’re professional and deadline-driven, which includes telling me along the way if things need to be extended. Their attention to detail and ability to go above and beyond the tasks set stand out.

Mobile App Dev for Location Data Platform

We’re satisfied with their performance. They’re pretty clear, and we can see their dedication. KeyToTech’s resources are dedicated—they care about the project and put their heart into it. They work very hard and are professional.