MAHJ: Learn American Mahjong

About this app

Learn American Mahjong (NMJL rules) from scratch — and walk into your first game night confident. MAHJ teaches the modern American game step by step: the tiles, the Charleston, reading the card, calling, jokers, and a full guided walkthrough of your first complete hand. WHAT'S INSIDE • 18 lessons — absolute beginner to your first real game • Tile drills, a daily puzzle, and interactive practice • A printable cheat sheet and an A–Z glossary • Play vs. bots to rehearse a real hand • "Ask the Coach" — an AI tutor that answers your rules questions in plain English • Host Mode and group play to get your table started WORKS OFFLINE Lessons, drills, the daily puzzle, cheat sheet, and glossary all work with no connection. Only the AI Coach and card-reader need internet. SIMPLE, HONEST PRICING Start free with the intro lessons. One optional, one-time purchase unlocks everything — all 18 lessons, play-vs-bots, and the Coach. No subscription. No ads. Built for new players who want to stop feeling lost and actually enjoy the game. Welcome2Mahj LLC is an independent educational tool — not affiliated with, endorsed by, or sponsored by the National Mah Jongg League (NMJL®).

• New lesson — "Your First Full Game": a complete hand start to finish — turn order, getting skipped, and reading the payout. • Smarter practice: opponents are read from their visible tiles, and the coach no longer suggests discarding from a hand you could already win. • Purchases made clearer: better cross-device Restore, a Family Sharing note, and an easier way to reach us. • Reliability + latest store billing under the hood. • Plenty of polish and small fixes.

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 Sep 3, 2026 · 9:25 PM Free