Katachi - Shape Reflex Puzzle
Focus. React. Tap the shape.
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Train your focus in 60 seconds a day. Tap the right shape, color, and direction before they vanish.
〔What is Katachi?〕
Shapes stream across the screen — circles, triangles, squares, stars — in four directions and five colors. One rule: tap only the ones that match the prompt. Sounds simple. Gets real fast.
〔Four Ways to Play〕
· 10-Question Challenge — Four difficulty levels (Easy to Expert) plus negation prompts ("tap everything except…") keep every session fresh
· Daily Challenge — 10 questions shared worldwide each day. Track your streak and share results Wordle-style
· Endless Mode — Survive as long as you can. No mercy.
· 200 Levels — A long-form progression that grows with you
〔Brain Age〕
Your reaction speed is measured and converted into a brain-response age (15–80). Play daily to push it younger.
〔Built with care〕
· 80 prompt patterns (4 shapes × 5 colors × 4 directions)
· Detailed stats with Swift Charts
· Dark mode and color-accessibility support
· No internet required (except ads)
· Zero personal data collected
〔Privacy〕
All gameplay data stays on your device. No account needed.
Privacy Policy: https://kazusa703.github.io/privacy.html
Terms of Use: https://kazusa703.github.io/terms.html
Support: https://kazusa703.github.io/support.html
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
・Redesigned the Home screen and overall UI with a calmer, more focused look.
・Improved recommended levels based on your recent play.
・Added clearer session feedback and mistake reasons in result details.
・Improved localization and overall stability.
The developer, atsuko imai, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Identifiers
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- atsuko imai
- Size
- 6.5 MB
- Category
- Puzzle
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 30 more
- English, Arabic, Croatian, Czech, Danish, Dutch, Filipino, Finnish, French, German, Greek, Hebrew, Hindi, Hungarian, Indonesian, Italian, Japanese, Korean, Malay, Norwegian Bokmål, Portuguese, Romanian, Russian, Simplified Chinese, Spanish, Swedish, Thai, Traditional Chinese, Turkish, Ukrainian, Vietnamese
- Age Rating
4+
- 4+
- Contains
Advertising
- In-App Purchases
Yes
- Remove Ads $2.99
- Copyright
- © 2026 Issatsu Imai