Mahj On

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.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://mahjon.app/privacy