The most refreshing brain trainer app.
More than 400K downloads!
A fun way to train your brain and build up math skills.
A recommended way to prevent dementia and Alzheimer’s disease.
Ranked #1 in Google Play educational games!
Increasing popularity! It’s free!
Train your brain with HAMARU
For those who like brain trainer, want to prevent brain aging and dementia.
User-friendly brain trainer and brain teaser!
Powered by “CRI ADX2 (TM) LE”. CRIWARE is a trademark of CRI Middleware Co., Ltd.
Great graphics and really speeds up your mental arithmetic!