Kapuila is a different kind of App combining a fun game with exercising your brain.
The Premium version contains many more levels than the free version (6 levels)
Levels get more and more difficult as the game progresses.
It has two parts:
Memory: Test and train your short term memory.
Logic: Test and train your ability to solve logical puzzles.
In the premium version you can also play a version alternating between the two kind of puzzles.
Integrated with public or private leaderboards.