Rhtyhm Explorer App
My app has over 33 rhythms and it is mainly designed as a visual tool for learning to play the Frame Drum (or Darbuka) and understand how you can embelish the rhythms - what you can add ans where to add it.
After people have commented that I should make it play the rhythms, I was able to do that too - but it only works reliably on PC. I will see if I can make it work flawlessly on mobile too, later.
For now, the FULL version of the app is available for free here.