Riichi Calc - Japanese Mahjong

Richard L

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About this app

Riichi Calc is an easy to use app that takes any valid Japanese mahjong hand and calculates all possible winning combinations. A great companion for any Japanese mahjong player! Feel free to e-mail me about any calculation errors.


Features:
　• Used for the Japanese variant of Mahjong
　• Order is irrelevant. The app will rearrange the tiles for you
　• Determine waits of a tenpai hand
　• Provides warnings against illegal combinations (e.g. riichi with an open hand)
　• Calculate points using han and fu as the input
　• Display terminology in English or romanized Japanese

Ratings and reviews

So idk what happened, but there used to be a tab for switching to the view that allows you to adjust dora, honba, and winds. It's completely gone. I actually came here to say that there must be a bug, until someone else at the table with me figured out that you have to swipe to get there instead. There are no visual indications for this--if I were a new user, I wouldn't even know to look for that page. This is either a bug, or a terrible, terrible design decision.

Great app for score values, one small nitpick is that i can't seem to find an option to specify that the win was through ron, not a self draw. Otherwise, really great app and really useful for beginners/ intermediate players.

edit: this is the best riichi calculator I have ever used and the developer fixed a major bug within a day. incredible work and customer support. original review which is no longer factual: used to be amazing but I can't seem to find the conditions tab anymore which is essential to score calculation. will revise to 5 stars when fixed

What’s new

Stability updates