This app has the sound of Youkai Watch when you set the medals in it.

There is also mini games, Brain Train, and number and calculation quiz.

Brain Train is an escape game. You can escape the room solving puzzles.

In Learn Numbers And Calculation Quiz, you can play the quizzes
Which is more ?
How many ?
Learn the numbers
Find the rules
addition
subtraction
multiplication
division.

There are time attack modes for multiplication, division, addition, and subtraction. You can make your calculation speed faster, enjoying the game.

You can see your score in game center, and compete your score with your friends all over the world.