Rounding out Android

android apps & research

  • Android Development

    Jupp, we care about Android app design, clear code and app visibility.

  • Design

    Design is not just how it looks, it is "how it works". Apps should be a joy to use, no matter of the underlying app's purpose.

  • User Experience

    Exceedingly coupled with design, we make sure that you are in control of the app. Not the other way round.

  • Research

    In tight collaboration with top-notch computer-science universities, we continuously analyze & optimize Android internals.

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10 seconds of math

be fast. be clever.
You've got 10 seconds: try to solve as many math terms as any humanly possible.
Difficulty adjustable, batteries included.

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King of Math

A professional brain trainer. One that is both efficient and fun to use.
✦ #1 Maths App on Google Play    
✦ More than 1,000,000 downloads

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Tap objects to prevent them from touching the dirty, dirty floor.
Numerous events will randomly crush in and make doing this
seemingly simple action more difficult.

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Our Clients

Millions of people use our products every day. They come from all different spots of the world.
We are unbelievably grateful that we could already reach so many individuals and will keep up the good work.

By the way, here is a short video review of King of Math made by Oawalker.

Team, Team, Team!

Andrew, Michael & Fernando — that's us :)

Andrew Parker

Lead Designer

Michael Jakob

Developer, Founder

Fernando Herold

Android Developer

Contact Us

Do you have cool ideas you want us to be aware of?
Have you encountered any issues with our solutions?
Let us know — support is free! :)

support [at]

Troubi Entertainment
Am Sand 4, 94577 Winzer, Germany