Katachi - Shape Reflex Puzzle

About this app

〔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

・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.

Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.

1. First observed Aug 15, 2026 · 1:36 PM Free