About Ready Hand
Know your points.
What it does
Take a photo of your hand. Ready Hand reads the tiles, tells you whether it's ready or scores a complete hand, and shows what counted — and what didn't.
It shows its work. Mahjong players tend to have opinions. Your table rules get the last word.
Score a hand and it offers to keep a tally for the table too — who won what, for the rest of the evening. It stays on the phone that started it.
Rules
Ready Hand scores two rulesets, one at a time. Switch between them from the style badge at the top of the app; whichever you pick is remembered until you change it.
81 patterns · 8 points to go out · no ceiling
The international tournament standard, used for the World Championship. Long hands, big numbers, and a non-repeat principle that stops a pattern already implied by a bigger one from being counted twice.
A published competition standard: every one of the 81 was checked against it by hand.
beta — All 81 checked by hand against the published competition rules, and scored at real tables since August.
24 patterns · 3 faan to go out · 13 the ceiling
The fast home game played across southern China and much of the diaspora. About twenty patterns that simply add up, most hands a run of chows, and a limit that keeps the biggest hands from running away with the evening.
Hong Kong has no single rulebook — it is a family of house rules. Ours follows the Hong Kong published tables, so your table may differ on the rarer patterns.
alpha — New in September, and not yet checked against a real table. Hong Kong has no single rulebook, so the rarer patterns are the ones to watch.
Any other ruleset will produce creative results.
What comes next is up for a vote.
Cast your vote
More are underway — which would you like to see next?
Your photos
Photos are cropped on your device, then sent for tile recognition. Some may be kept to make recognition better.
No account. No name. No location. No IP address stored.
Got it wrong?
Wrong tiles: recognition bug.
Right tiles, wrong score: scoring bug. Slightly more embarrassing.
Reports include the hand and result automatically. Nothing to retype.
Tell us something
Why it exists
Built to spread the fun — and so its developer can teach mahjong without feeling like an impostor.
Who memorizes all 81 fans?
Use it to learn. Use it to teach. Or use it to be petty at the table and settle who really had the upper hand.