Mahj Mentor: Learn Mahjong
American mahjong, tile by tile
About
Learn and play American mahjong with interactive lessons, AI-powered practice, and multiplayer options. Customize your experience with unique tile sets and track your progress.
What's New in Mahj Mentor
1.5.0
November 7, 2026
New in Mahj Mentor: Custom. Custom has its own home on You. Make a card for your group from a blank page: name your own sections, then build each hand around its printed line, one group of tiles at a time. Or copy the ’26 or ’25 card and change what you like. Popular cards. See the cards people play most, and add one to your cards. An easier way to share. The Share page puts your card’s link, code and QR code in one place. Friends play your card for free, and when you send changes they choose when to take them. Save pictures. Turn any of your cards into pictures to print for game night. Making and changing cards comes with Plus.
MoreSubscriptions & In-App Purchases
Plus Yearly
Coaching, harder drills and Pass and Play, yearly.
FAQ
How does Mahj Mentor teach American mahjong?
Mahj Mentor uses short, interactive lessons that cover tiles, the Charleston, jokers, calling, and scoring. Each lesson includes a quick check to reinforce learning.
Can I play Mahj Mentor offline?
The app offers practice against patient bots, which can likely be played offline. However, online multiplayer features require an internet connection.
Does Mahj Mentor have ads?
No, Mahj Mentor does not contain advertisements. The app is free to download and play, with optional in-app purchases for enhanced features.
What are the subscription options for Mahj Mentor Plus?
Mahj Mentor Plus offers optional monthly ($1.99/P1M) and yearly ($17.99/P1Y) subscriptions. These unlock advanced features like coaching, hints, and more detailed drills.
How does the AI card reading feature work?
You can photograph your mahjong card, and the app sends it to a server for processing by Anthropic's Claude. The results are then returned to you for comparison against the printed card.
What devices is Mahj Mentor available on?
Mahj Mentor is available on iPhone, iPad, and iPod devices, supporting a range of Apple mobile platforms.
How often is Mahj Mentor updated?
The app was last updated on 2026-11-05 with version 1.4.0, indicating regular updates to improve features and performance.
What is the age rating for Mahj Mentor?
Mahj Mentor has an age rating of 12+, making it suitable for younger players and adults interested in learning mahjong.