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Experience the refreshing feeling! Brain training through games!

The very refreshing brain trainer app.

More than 1000K downloads!

A fun way to train your brain and build up math skills.

A recommended way to prevent dementia and Alzheimer's disease.

Increasing popularity!

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!

Brain Test & Free Training Games!

Offline & no WIFI

What's New in the Latest Version 5.0.0

Last updated on Oct 9, 2023 Improvement made in the current version includes the following.

adjusted playability
increased performance speed