A few minutes.
A fresh puzzle.
Try calculation, memory, spot-the-difference and number-tapping games. Enjoy a daily challenge or choose a game at your own pace.
App Store: 2026-11-11

Three features for everyday use.
Four mini-games
Play calculation, memory, spot-the-difference and number-tapping games.
A daily challenge
Try a daily challenge of about three minutes, or choose free play.
Review your progress
See personal bests, history and a completion calendar.
Getting started is simple.
Select today’s challenge or a mini-game you enjoy.
Follow the on-screen instructions and try the puzzles.
Check your scores, personal bests and completed days.
Frequently asked questions
Do I need an account?
No account registration is required.
Can I play offline?
Basic games work offline. Network features such as ads need a connection.
Is the Android version available?
The Android version is under review. A download link will be added after release.
For details, please see our Privacy policy ↗.
Make 脳ストレッチ / Brain Puzzle Daily part of your day.
Explore the app in a store where it is available.
App Store: 2026-11-11
An entertainment puzzle app, not a medical or diagnostic tool. Cognitive improvement is not guaranteed. Basic games do not require watching rewarded ads.