Mahj On
The American Mahjong companion
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
The scoring companion your Mahjong table has been waiting for. Track games, stats, and settle up with friends—all in one beautifully simple app.
Mahj On is the scoring companion built for American Mahjong players who want to spend less time doing math and more time playing the game they love.
Whether you're keeping score at your weekly group or settling up after a tournament, Mahj On handles it all—from hand values and joker adjustments to automatic payment settlement.
SCORE WITH CONFIDENCE
Select the hand value, how it was won, and whether jokers were used. Mahj On calculates every score instantly so you can get back to the next deal.
SESSIONS & LEADERBOARD
Run multi-game sessions with 2–4 players. Watch the leaderboard update in real time, review a running log of every game, and pick up right where you left off—perfect for weekly or monthly groups.
SMART SETTLEMENT
When the session's over, Mahj On minimizes payments so everyone settles up in the fewest transactions possible. No more IOUs.
HIGHLIGHTS
Share a beautiful score slip and your table setup with friends via Messages, social media, or anywhere you like.
STATS & HISTORY
Track your win rate and earnings over any period—week, month, year, or all time. Browse a date-grouped archive of every completed game with full hand logs. A seven-day play tracker keeps your streak alive.
iCLOUD SYNC
Your data follows you across all your devices, automatically.
GO JOKERLESS—$1.99/MONTH
Try it free for 7 days. Cancel anytime.
Jokerless is the connoisseur's tier—every hand on every card, every set in the cabinet, every Tuesday across the season:
• Tile & Mat Tracking—Catalog your tile sets and mats, pick them during setup, and see which ones you win with most.
• Card Journal—Track which card lines you've won and see your completion progress across every game.
• Hand Picker—Browse the card by section, pick the exact winning hand, and let the app enter the value for you.
• Table Favorites—See which tile set and mat combos bring you the most luck.
• Game Heatmap—A six-month grid showing how often you play, day by day.
• Live Activity—Check the leaderboard and current dealer right from your lock screen.
Questions or feedback? We'd love to hear from you.
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Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://mahjon.app/privacy
Ratings & Reviews
- Dark Mode: light, dark, or follow your system.
- Set the Table (Jokerless): after you pick players, choose your card, tiles, and mat, name the session, and start the Charleston walkthrough, all from one screen.
- Streaks & greetings: the home screen tracks your table-action streak and greets you when you sit down (and gently ribs you when you've been away).
- Session names: rename a session whatever you like instead of the player list.
- Remove the Mahj On wordmark from shareable game cards (Jokerless).
Plus Card Journal polish, stats that follow your period filter, a tidier table-settings menu, and fixes throughout.
The developer, Maybe Tomorrow, 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 Linked to You
The following data may be collected but it is not linked to your identity:
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Maybe Tomorrow, LLC
- Size
- 10.7 MB
- Category
- Entertainment
- Compatibility
Requires iOS 26.0 or later.
- iPhone
Requires iOS 26.0 or later. - Mac
Requires macOS 26.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 26.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Contains
User-Generated Content
- In-App Purchases
Yes
- Jokerless Monthly $1.99
- Copyright
- © Maybe Tomorrow, LLC