Available now
Hong Kong
Old Style rules, a complete four-wind match, and opponents who play to win.
Mahjong · 麻雀 · 廣東話
Mahjong,
made easy.
Learn it. Score it. Play it.
Point your camera at the table. Every tile is read on your device.
- On-device
- No account
- Works offline
- English + 廣東話
What's this?
Never ask “what tile is that?”
Hold a tile up to the camera for its English name, Chinese name and Jyutping. The 發 you were never sure how to say is 青發, faat chòih.
Score
Won? Point your camera.
Sensei counts the faan — and shows you why.
Practice
Practice until it clicks.
Twelve drills, graded on your own table's rules.
Play
Sensei sees the win before you do.
The most advanced Mahjong AI on iPhone. Play offline, and ask for a hint on any turn.
How Sensei learned to play→Tracker
See what’s still live.
Count the table between hands. Every copy tracked, dead tiles dimmed, your wait ringed in gold.
It took more than 100 million games of self-play to make Sensei.
One table, many traditions
Choose your style.
Every style gets its own rules, scoring language, and trained policy. Hong Kong Old Style is ready now; the rest arrive only when they are truly ready.
Explore Mahjong Styles↗Play this style
Coming next
Riichi
Its own rules and its own coaching are next on the table.
Planned
Taiwanese 16
A sixteen-tile hand deserves its own table logic—not an HK reskin.
Planned
Mahjong Competition Rules
The international ruleset is planned with its own scoring vocabulary.
Sensei plays and scores by Hong Kong Old Style rules today. More playing styles are on the way — each with its own rules and coaching, arriving only when they are genuinely ready.
Your table-side companion
From real tiles to a clear next step.
- 01
Point
Frame the tiles with the camera—no manual tile picker.
- 02
Check
Confirm the sets Sensei sees before it counts anything.
- 03
Understand
Read the score, then the reason each pattern scored.
Mahjong Sensei · 麻雀老師
Bring a Sensei to your next table.
More playing styles are on the way.
The camera, the tracker, the drills, and the full Sensei.
Download on the App StoreA free sample of the coaching. No account, nothing to install.
Play a hand in your browser