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Custom software development of the mobile applications

Using the latest technology tools and frameworks.


Smartphones are one of the most essential technologies nowadays. That is why a mobile app can make your business accessible to millions of users. For your application to be successful, it must be intuitive, fast, practical, and above all, easy to use. Our experts carry out the process of creating applications, from the design to clickable prototypes that will help understand the needs of the market and its potential users. After this, they incrementally provide subsequent parts of the application so that you, our client, have continuous insight and can take part in its creation. The choice of technology between Native or Cross-platform solutions is substantial when designing the application.On cross-platforms solutions such as React Native, Cordova, or Flutter, the application is created simultaneously on both Android and IOS resulting in reduced time and costs. However, native solutions have certain advantages over cross-platform, so it is encouraged to make the decision at the very beginning.

When the application is ready, it is then deployed to the Play Store (Android) and the App Store (IOS).

Our recommendation for cross-platform solutions is to use Flutter which is Google’s counterpart to Facebook’s React Native. It has been stable since December 2018 and is quickly gaining popularity in the mobile community. We have also observed that app development is much faster with Flutter compared to Cordova or React Native which is very important especially for the MVP stage or a quick prototype. You can read more about Flutter here.








React Native

React Native





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Only A-players
Google-level engineers

DevsData LLC engineers and product managers have attended top-tier universities, worked at tech titans, hedge funds, and are high-achievers with international experience. We are passionate about technology and we never stop learning.

We have people that graduated from Oxford, mensa members, ex-Googlers, ex hedge fund employees, experienced tech leads, and open source contributors.

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We value transparency and communication

We are characterized by a business-oriented approach, always keeping an eye on the client’s goal and the progress and avoiding over-engineering or pointless work.

Many engineers or agencies will jump straight into coding without taking the time to really understand what the project is about. At DevsData LLC, we think about the business perspective, hear the client out, brainstorm, and plan the initial phase together in a way that allows for fast iteration, feedback gathering, and rapid validation. And indeed – every project is different than the previous one.

We care about more than just technology

Your Business Is Our Focus

When working on a project, we build an interdisciplinary team that aligns with your needs. The team is there to support you and to make sure that your project remains on track. Working together with our clients allows us to see beyond the code and grasp their business objectives.

DevsData LLC helps businesses cut costs and increase revenue with custom software. Our knowledge and flexibility lets us serve both established enterprises and growing companies.

Apart from deeply-experienced technical specialists, we also involve people from top European business universities, alumni of elite student business programs, and people with consulting experience (BCG, EY, PwC).

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For demanding clients

Learn about other services we offer

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We value transparency and communication

Working with DevsData LLC

We believe that business is more about relationship than simply exchanging money for services or goods. That is why we value open communication, collaboration transparency and quality deliverables.

We are always open to new forms of work but over the years we have battle–tested following agreements:

Flat hourly rate — we charge for every hour our developers have spent on client’s project. Once in a while (usually once in a month) we issue an invoice for the last billing period. We provide detailed receipt so that our client knows what he or she pays for.

Retainer fee — it is very similar to hourly rate but there is a fixed amount of hours paid in advance. This allows us to offer lower price–per–hour while our client can better plan his or her budget.

Fixed–price — it is the least flexible form of agreement where specification and price are set in advance.

It makes it very easy to plan budget but specification must stay consistent throughout the project course. Payments are usually batched and tied to product milestones. Due to very high risk of specification becoming outdated, we suggest this agreement working for very specific projects

We enjoy working in a tight feedback loop. That is why we usually mix into our client’s team. We take part in the same stand–up meetings, we do the planning and development together, we sit in the same chat rooms. We keep our clients informed through the same communication channels they use like, email, Skype, Hangouts, Slack, or old–fashioned IRC. We want our clients to know what we are working on and what is the progress. Regular video meetings are arranged at least once a week

Every agreement carries some risk. We always do everything to mitigate it for our clients — we want to be an investment, not a cost. In particular we put various guarantees and SLAs in our agreements with clients.

Highly satisfied clients, world-wide

Received (13)

  • DevsData is doing a great job recruiting several highly experienced engineers and designers for multiple roles in front-end with React, back-end with C#, search specialists in Solr, and UX designers.

    They designed a great process that met all our expectations, and I was thoroughly impressed with their internal recruitment scrutiny, the understanding of the technical nature, and accuracy, which allowed us to review a number of highly qualified and experienced candidates. Their team did an excellent job of identifying and comprehensively analyzing the abilities and skills of potential candidates.

    DevsData not only created a high-level mechanism that let us reach the best, top-notch candidates but also they helped us throughout the whole recruitment process in a holistic way.Their professionalism, involvement and understanding of their client’s needs allow me to state the high quality of the company’s work. As a bonus they are a nice group of people and you can’t really ask for better representation and support to build a solid product development team.

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  • We have been working with the DevsData team on a mobile project for nearly a year, and I have consistently been impressed with their scope of knowledge and experience, professionalism, and ability to get the job done. The team offers innovative ideas, produces strong deliverables, and delivers on time. Most importantly, everyone has a great attitude, and I really enjoy working with them! Thanks Tom, and the DevsData team!

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  • DevsData reached out to us, as we’ve been looking to grow our engineering team in Europe and Poland. Communicating efficiently and professionally, DevsData made a strong impression with their understanding of the recruitment challenges we were facing.

    They have designed a custom made recruitmentnderstanding, challenges we were facing. They have designed a custom made recruitment process, specifically tailored for our hiring needs. I was thoroughly impressed with the level of detail and technical nature of their approach - this allowed me to focus on a smaller pool of applicants. Their recruitment team had a solid technical u so we were sure we could trust them throughout the entire process.

    DevsData has been extremely responsive and resourceful in helping us identify some great candidates. I find the company exceptionally professional, diligent and productive with an excellent understanding of the market and clients’ needs.

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  • Tom and his team showed great dedication to us as client and allowed wellbee to launch an Alpha stage of our online therapy product in under 1 month from absolute scratch. I need to congratulate them on the very good UX and UI design and good communication skills of the whole team.

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  • I've had an opportunity to work with Tom over extended period of time in a very intensive recruitment project for Pioner Labs. He made an impression on me as a very high-energy person that worked around the clock to find top contributors and send them our way. I was especially impressed by his ability to continue to find world class candidates months into the recruitment. In our collaboration Tom has shown dedication and commitment. One thing that stood out and continues to impress me is Tom's impossible response time (usually just seconds after I send a message his way).

    I definitely recommend working with Tom to everyone that is building a team made of top tier individuals.

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I agree to and accept that DevsData LLC will provide better user experience by collecting, analyzing and cataloging information about Internet electronic addresses that I have connected with my devices and about the type of my devices (such as the type and version of software) as well as by making automatic decisions (not involving sensitive data). The agreement applies for the legally binding period, or until either the user or DevsData LLC withdraws from the agreement. Withdrawing from the agreement will result in removing the user's data. Please see our privacy policy.

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Best back-end engineers I've ever worked with.​

“I interviewed about a dozen different firms. DevsData LLC is truly exceptional – their backend developers are some of the best I’ve ever worked with. I’ve worked with a lot of very well-qualified developers, locally in San Francisco, and remotely, so that is not a compliment I offer lightly. Their depth of knowledge and their ability to get things done quickly."

Nicholas Johnson




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