Schulte table mobile game.
https://fr.wikipedia.org/wiki/Table_de_Schulte
You can choose table size from 2x2 (for 3 year old beginners) to 5x5 (for grown ups).
Two game modes available at the moment: easy and normal.
And game tracks (locally) your best time for each table size / game mode.
Latest version 0.1.18 available at: