App for android for child to learn and play

If they just only play the game, they will addictive game. I very worry about that.
Can you give me the apps for android for my child to learn and play.

Kids Swap & Turn Puzzle
Kids Swap & Turn is a kind of jigsaw, which develop your kids imagination, patience and aesthetic sensitivity. It requires children to be persistent and focused, as well as able to plan their activities.
Features:
- 2 modes: Swap & Turn
- 3 difficulty levels