- Developer: RYUJI KUDO
- Website: Official website
- Release Date: 2017-05-04
- Supports: Family Sharing
- Languages: English, Japanese
- Compatibility: Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.
Summary
## Description
This game is intended to prevent the decline of memory.
Numbers and + and - are displayed separately.
It is necessary to calculate while memorizing numbers.
This will train the brain.
Games related to Norn's brain train (recovery of memory)