Riichi Mahjong Calculator icon

Riichi Mahjong Calculator

ssttkkl
Science & Education
Version
1.0.13
Size
3.4 MB
Requires
Android API 24+
4.7 / 5 · 3,194 ratings 0 downloads

Updated Sep 22, 2026

Quick answer

Riichi Mahjong Calculator, featuring hand efficiency calculation, and more.

F-Droid repository metadata

Riichi Mahjong Calculator, supporting features such as hand efficiency, meld hand efficiency, winning hand analysis, and score calculation for fan and minipoints.

- Hand Efficiency: Includes tile efficiency, good-shape tile efficiency (for one-shanten only), and backwards strategy.

- Meld Hand Efficiency: Tile efficiency for chow, pung, kong, and pass; includes good-shape tile efficiency (for one-shanten only) and backwards strategy.

- Winning Hand Analysis: Defaults to Mahjong Soul/Tenhou rules, with customizable rules to some extent.

- Score Calculation By Fan and Minipoints: Defaults to Mahjong Soul/Tenhou rules, with customizable rules to some extent.

What’s new

How to install

  1. Download the APK from the button at the top of this page.
  2. Allow “Install unknown apps” for your browser or file manager only, not for every app.
  3. Open the downloaded file and confirm the installation.
  4. If installation fails with “App not installed,” remove an earlier build of the same app first. A signature conflict is the usual cause.

Data safety

  • Every file is checked against its published SHA-256 before it is listed.
  • Files are scanned for malware on every update.
  • The permissions each app requests are listed on its own page.
  • Read the full safety policy for how we test, flag, and delist files.

Comments

Recent approved comments · sorted by newest

Verification code
Be specific and keep it about the app. No links. Comments are reviewed before publication. Device and Android details are recorded automatically. Privacy policy.

Loading recent comments...

View all comments