Riichi Calc - Japanese Mahjong

Richard L

Contains ads

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

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

Works for the most part, but there no 'pinfu' option to add as yaku. Sometimes there are pinfu only hands or riichi pinfu.

It a great app and functions well. There's definitely some quality of life things that could be adjusted such as being able to more conveniently mark the winning tile or at least i don't know how to do it other than inputting it last. Also it would be nice to be able to remove ads.

What's new

Fixed tiles/conditions tabs not showing