Mahjong Master Coach

Your Personal Mahjong Coach

Free · In‑App Purchases · Designed for iPad. Not verified for macOS.

A coach that explains every move — tap Why? and watch it think. Challenge a friend to the exact same deal with a QR code: no account, no server. Mahjong Master Coach is a single-player Mahjong game built like a fitness coach. Play AI opponents from Basic to Mahjong Wizard, with a coach that ranks your options, explains why, and reviews every game in plain language that never reads like a form letter. • Learn by playing — a guided first game, lessons, and quizzes that track what you've mastered. • A coach that explains — rank your options, tap Why?, and watch it think out loud: the priority, the candidates it weighed, and the trade-off, grounded in the real numbers. Coaching runs on-device and offline using Apple's on-device intelligence, so it stays private. • The analysis lab — every discard gets a decision-quality score and an optional confidence read (best, good, or risky). A per-turn timeline shows the handful of moves that actually cost you, and an efficiency radar maps your strengths. Replay any hand and change one discard — the AI plays it forward so you can compare outcomes side by side. It grades your decision, not your luck. • A Master Score out of 10,000 that rewards knowledge, training, and real games — and gently fades if you stop, so streaks matter. • Seven rule sets — American (NMJL-style, with the Charleston and jokers), Hong Kong, Japanese Riichi, Chinese Official (MCR), Taiwanese 16-tile, Sichuan (blood-battle), and a Simplified beginner set — each with its own coaching and references. • Mahjong Solitaire, too — layered tile-matching with boards that are guaranteed solvable, plus a daily challenge. • Challenge a friend to the exact same deal with a QR code — they play the identical hand on any device, then you compare scores. No account. No internet. (Powered by the open Mahjong Portable Format.) • Your mahjong home base — optional and in-app: mahjong news and events, a community and clubs directory, and mahjong podcasts with a built-in player. • Clean and private — no ads, no gacha, no fan-service, no tracking. Plays fully offline. Subscription: monthly or annual, with a 7-day free trial. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

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The developer, JSC BIZ, LLC, 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 Not Collected

    The developer does not collect any data from this app.

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    Accessibility

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    Information

    Seller
    • JSC BIZ, LLC
    Size
    • 86.7 MB
    Category
    • Board
    Compatibility
    Requires iOS 17.0 or later.
    • iPhone
      Requires iOS 17.0 or later.
    • iPad
      Requires iPadOS 17.0 or later.
    • Mac
      Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
    Languages
    • English
    Age Rating
    4+
    In-App Purchases
    Yes
    • Premium — Annual $39.99
    • Premium — Monthly $4.99
    • Learn More
    Copyright
    • © 2026 JSC BIZ, LLC
  • Developer Website
  • Privacy Policy

    • More by JSC BIZ, LLC

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