App Development Company

Transparency | Quality | Partnership

Having experience from over 100 app projects, we'll bring your product idea to life.

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Bring your ideas for mobile applications, web services, IoT apps or more complex solutions to life with us. Work with a team of experienced designers and developers equipped with the best tools and technologies. Be it Flutter, Swift, Kotlin, Node.js, Ruby or React.js. We have the skills that you need.

Our latest digital products

Check out our portfolio of various mobile, web and IoT apps. We're proud to share the outcome of our work and clients’ opinions about our collaboration. You can check the latest world-class products we created with our clients below.

Sport
Health
Social Networking
Squaddy

Squaddy is a fitness mobile app to create and share workouts and training content (in-depth articles, guides, links), chat with your teammates, friends and clients, organise online or IRL sessions and more!

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Squaddy founder on working with us

FDT have an exceptional team. They hire selectively which is obvious when you begin working with them. Their development skills are first rate, as are their product/UI/UX skills. Don't have any hesitation about hiring them, they're awesome.
Lucien O'Donoghue
Lucien O'Donoghue Founder of Squaddy
100+

finely-tuned projects delivered

90%

of our clients come back with new challenges and tasks

70%

of our clients came to us by recommendation

8+

years on the market

Full-cycle product development services

We offer a wide range of solutions – from the ideation stage and building a product strategy, to designing and creating fully-fledged products that meet your business needs. App development services we provide: native iOS and Android applications based on Swift and Kotlin, web apps based on Node.js, React and Ruby on Rails, cross-platform apps based on Flutter and React Native, and custom IoT apps. For all these products we create intuitive and functional designs with the UI/UX designers and care about quality with a dedicated Quality Assurance team.

Digital product consulting
UI/UX
Design
Mobile app development
Web
development
IoT services
Check out our services

What our clients say about us

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They love working on our projects, and they enjoy what they do. Most developers don't like to work on other people's code but FiveDotTwelve has been very open to that. Thanks to them, we didn't have to rewrite the app's code. They're also timely, which is why we have a very good relationship.
farida
Farida Shakhshir Founder of SimSim Recipes
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FDT have successfully helped across several different projects. They have been able to provide a personable and human approach to outsourcing. Their developers integrated into our team on one project whilst on another they were able to take a specification and independently deliver the final product. Would highly recommend.
daniel nicolson
Daniel Nicolson Managing Director at Cleversteam
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Our joint project with FDT resulted in outstanding results for our company. We achieved all business goals in given schedule and budget. On development level, the agile approach proposed by FDT, helped us to have a full control on our project. On personal level, working with Damian and his goal-oriented team was an exciting journey which was a pleasure not a daily routine. Hopefully, we can work together in the future.
piotr czak
Piotr Czak CEO at PySENSE
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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. The quality of work was very high. They had an amazing ability to understand our business and the technical goals of the project. And their quality of cooperation, competent team and partnership style of cooperation make them amazing partners to build products together.
adam sujka
Adam Sujka CEO at Platypus
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FDT have an exceptional team. They hire selectively which is obvious when you begin working with them. Their development skills are first rate, as are their product/UI/UX skills. Don't have any hesitation about hiring them, they're awesome.
Lucien O'Donoghue
Lucien O'Donoghue Founder at Squaddy
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FiveDotTwelve exceeded our expectations. They were creating the product as if it were their own and treated each element of the application as a task to move our business to the next level and improve end result. They were real partners for us. They advised us at every stage and flexibly adjusted the possibilities to our specific budget. We plan to continue cooperation with the maintenance stage and develop app’s next functionalities.
przemyslaw zielinski
Przemysław Zieliński CEO at IDAREU Ltd
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FiveDotTwelve understood our intentions and needs well. We could count on their advice at each stage of the work. They prepared a design that suited us very much, keeping our website in a simple but elegant tone.
Patryk Kornas
Patryk Kornas Founder at Andermatt Swiss Watches
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FiveDotTwelve provided strong guidance throughout the process and was receptive to receiving and implementing feedback. Their team is dependable and delivers high-quality products. Honesty and reliability are hallmarks of their work.
joseph
Joseph Basha CEO at Perfusion International
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The most impressive aspect of working with FiveDotTwelve was the team ethos and everybody pulling together to find solutions to issues within the development roadmap.
kevin scott
Kevin Scott CEO at Mudita Sports UK LTD
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We have been using FiveDotTwelve as our development partner for UX design and web development. They are efficient, service minded, proactive and available. I can give them my best recommendations.
kathleen
Kathleen Meling CTO at LifePlanner AS
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FDT reliably developed mock-ups of the user interface, organized project meetings and took care of the quality of the software on its own. We were regularly informed about the progress in a professional manner.
dominik bochenski
Dominik Bocheński Director at Atende Industries
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This was a steep learning curve for me and the whole team at FiveDotTwelve were as patient as they were professional. It really felt like the whole team was working together to build the best possible app, developing and enhancing my initial ideas.
aidan
Aidan Harvey-Craig Founder at WellSenz
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FiveDotTwelve treats my project like their own and is always willing to provide ideas that make the product better. Often, they are able to provide feedback on my ideas that make things more efficient or user-friendly, and that back-and-forth is one of the biggest strengths of working with them.
piotr-lewandowski
Piotr Lewandowski CEO & Founder at ParrotOne
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FiveDotTwelve is more like a team than an agency that you just hire. Great understanding of the product and my vision. They were really supportive when I needed that, and also when I wasn’t expecting any assistance from them at all. I highly recommended FiveDotTwelve.
ozgur
Özgur Coban Founder at FERMO Food
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We’ve been working with FiveDotTwelve for years. They helped us develop a mobile app and a website. They often think ahead of us, they advise along the way and deliver products exceeding our expectations. Working with them has been a sheer pleasure and a huge dose of professionalism.
malgorzata
Małgorzata Drozdowska Marketing specialist at Apsys Management (Manufaktura)
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It was a pleasure collaborating with FiveDotTwelve. They were an extension of our team and distance was not a problem. Everyone we met was friendly and professional. Well oriented in planning the tech stack, they were a guiding hand in developing our product. I would enjoy working with them again and wholeheartedly recommend their services.
han-lee
Han Lee Co-founder at ShakaPass
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I heard about FiveDotTwelve when they developed an app for a local football club. In our long-term cooperation, I have appreciated the flexible approach to our corporate structures. What was really special was their help in understanding how mobile app development works, their guidance throughout the process and their expert knowledge. They were not afraid of challenges.
jaroslaw lukowicz
Jarosław Łukowicz Owner of COSINUS Schools
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FiveDotTwelve helped our product to reach the sky. They rapidly developed our app with a very nice look and feel. Our collaboration was great from the early start. They think along, which improved our vision in significant ways. The team is very committed and eager to make each project a success.
dennis
Dennis Henkes CEO at LXT
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It was a true pleasure to work with FiveDotTwelve, and they showed the highest level of professionalism. For us, this experience was like a 101 in managing and conducting IT projects. Their approach allowed us develop a final app version that exceeded our expectations, while opening new possibilities, and generating ideas for future products.
michal
Michal Obrębski Board Member at PySENSE
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On the sports market, mobile applications are not a new solution for communicating with fans. However, it is rare for a service provider to create a fully dedicated product for a club, which is exactly what happened in case of this project. An experienced team cooperated with a strong sports brand and the result is an effective marketing tool.
tomasz
Tomasz Koprowski Marketing Director at Skra Bełchatów
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They were more than just an agency; they really felt like a part of our organization. They worked incredibly hard and relished it. They took ownership of the platform, so, if there were any problems, they were as eager as we were to fix them.
oni
Oni Banurji Co-founder at DinerMojo
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FDT team really dedicated themselves to deliver an outstanding app — it wasn't just another project on the list to check. They were not only delivering on contractual obligations but also didn't hesitate to propose improvements.
margaret
Margaret Zablocka Founder & CEO at Onoco
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FiveDotTwelve helped us find right approach to create new version of mobile application. They are very open minded, often suggesting good ideas and quick in execution. What is also important they understand how we work and were able to adapt.
gundars
Gundars Graumanis Market Manager at Knauf
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Their communication was the most impressive thing about them. They not only waited for input from us but also proposed solutions. They were our partner, not just a team doing what they were told.
mateusz
Mateusz Żółtak Founder at Lagerhaus, GreenSense GmbH
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FiveDotTwelve delivered an end-to-end mobile app redesign that’s much more secure and continues to spur business growth. Since the new product launch, there has been a consistent upward trend in ratings, downloads, and monthly active users. The team was responsive, prompt, and dedicated.
nick farni
Nick Farni Head of Product at Sober Grid
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FiveDotTwelve has allowed us to integrate a new area of communication with our fans and increase marketing opportunities. The implementation of the project and its results exceeded our expectations.
tomasz
Tomasz Sadłecki Director for Technology and Innovation at Widzew
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We've been working with FiveDotTwelve for a long time. They do a great job helping us create the best version of our product. Very responsive, coming with interesting ideas, professionals you can count on. We are very pleased with this cooperation.
kevin
Kevin Yoo Founder at WearWorks
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Working with FiveDotTwelve was a positive change after our earlier experiences. They were focused on understanding our needs, were able to bring valuable comments to our ideas and above all they implemented an intuitive solution that allowed us to expand our offer.
natalia
Natalia Szepniewska Director of Business Development at Maxima Fides
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I’m very happy, they’re a really good team. We shopped around a bunch of different places, and they were the best during the presale and execution stages. I’ve done a lot of software work, and they’re in the top percentile.
alex-azzi
Alex Azzi Chief Biohacker at Biohack Network
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I recommend FiveDotTwelve for everyone who are not fond of hearing “it can’t be done”. The team successfully managed to develop my app ideas, often advising on how the functions could be improved. If it wasn’t for FiveDotTwelve, my project probably wouldn’t have seen the light of day.
piotr
Piotr Jarząbek Founder at WeAreBikers
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FiveDotTwelve are great people, good value, good quality, professional developers. They do what it takes to get the job done.
bruce
Bruce Eley Co-founder at Jōbu
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Thanks to FiveDotTwelve we were able to effectively enter the market in a short period of time and become operational in multiple countries. The communication was clear and efficient even though at times there were a lot of various topics going on at the same time.
adam
Adam Zaorski Co-Founder and CEO at Corner

4.9/5 rating on Clutch

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