Mobile application development

We test your mobile application before it gets built. In a matter of days we deliver a functional prototype, which allows us all fully understand product vision and utility. And when we finally get to start building your app, you will instantly be able to track progress, see results.

Find out what makes our team so unique:

A proven process
We strongly believe in and practice Lean Startup and Agile development
Quality in every inch
Every single functionality shipped comes with comprehensive, automated tests
Senior-only team
Each of our team members has at least 10Y professional experience in software development
Stunning graphics
We work with some of the best UI designers, to make your apps look truly amazing
Flexible arrangements
We work both fixed-cost and time & material
Great support
We work hard to deliver our customers exceptional support services.

Customer Testimonials


Receive a rough estimation within 24 hours. If you prefer to speak with our team-lead call us at (+48) 22 188-1301

Get in touch with us


Sealed Software
Branickiego 15
02-972 Warsaw, Poland