Riichi Calc - Japanese Mahjong Calculator

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

Works like a charm. Only 1 tiny comment: it appears you'll have to set the settings to Japanese Romaji, NOT to English..for otherwise it will not let you enter pairs and cannot do the calculation for you.

Very good provided you understand Japanese Mahjong well like I do, but have never mastered scoring. Would benefit from a "clear all tiles" button/function but not a major concern. Update have now given it 5 stars

Great app! I play a mahjong game that's in Japanese, and sometimes I can't figure out what Yaku I have, so this really helps. Easy to use and very helpful

What's new

Added Japanese as an terminology language option
Minor bug fixes