毎日の脳トレ

★ Feel free to do brain teaser every day!


Recently, I'm often surprised ...

I can't keep my concentration ...

This app is a must-try for such people.
Keep solving simple calculations like a game and use your head!


The more you do, the smarter you get!
The more you use your head, the more you can concentrate!
Feel free to train your head with simple operations!
(There are individual differences)

The letters are large so that people in their 60s and above, the elderly, and seniors can easily play!

Let's try brain teaser together!