Mahjong Jussei

Build a daily Riichi practice habit: five decisions in Daily Radar Run, then choose your own discard in My Hand Challenge before revealing the comparison.

Mahjong Jussei is a Riichi mahjong strategy coach for learners and improving casual players.

Build a daily practice habit with Daily Radar Run: five questions, first-answer feedback, and a completion streak saved on your device. Your first answer stays recorded, so changing an answer cannot rewrite your result.

Try My Hand Challenge with your own 14-tile hand. Enter tiles manually or use photo scan beta, confirm the hand, choose a discard, and then reveal Radar's comparison. See how your choice compares on shanten and effective tiles, including choices that share the top tier.

You can also practice with the training library or use the existing analysis mode to compare discard options, shanten, effective-tile signals, and an estimated next-draw improvement chance. The hand comparison is a simplified closed-hand efficiency model, not a complete assessment of table situation, defense, score, or expected value. Photo scan remains a beta input aid: check all 14 tiles before using a result.

Built for learning, not gambling. Mahjong Jussei does not support real-money play, betting, tournament assistance, or guaranteed-win claims.

Mahjong Jussei offers optional auto-renewable Pro subscriptions through Apple In-App Purchase only.

Pro subscription options:

• Mahjong Jussei Pro Monthly: renews every 1 month.
• Mahjong Jussei Pro Yearly: renews every 1 year.

Prices are shown in the app before purchase and confirmed by Apple. Payment is charged to your Apple ID at confirmation. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. Your Apple ID may be charged for renewal within 24 hours before the end of the current period. You can manage or cancel subscriptions in Apple ID settings after purchase.

Privacy Policy: https://huleme-official.github.io/mahjong-jussei-support/privacy.html Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Product Terms: https://huleme-official.github.io/mahjong-jussei-support/terms.html