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What’s New Version 4.14.0
Improved the EV discard practice result screen.
- Shows your rank among candidates and how much EV you lost vs. the best discard
- Breaks down the gap vs. the best discard by EV, win rate, and tenpai rate
- Discards within 1% of the best EV are now counted as correct
Description
◉ Calculate mahjong hand scores instantly!
◉ Practice score calculation with quiz-style questions!
◉ Calculate effective tiles for any hand!
◉ Practice tile efficiency with auto-generated quizzes!
Mahjong Score Calc II is a powerful calculator with 4 core features:
1. Score calculation from your hand (waiting tiles, points, yaku, mentsu, fu breakdown)
2. Score practice quizzes (han/fu input and point input modes)
3. Effective tile calculation for any 13-tile hand (draw, call)
4. Tile efficiency quizzes (best discard, best draw, best call, effective tiles)
This app is a complete upgrade to the score calculator tools that have long existed for riichi mahjong.
Whether you can't figure out your waiting tiles, or want to know exactly how many points each draw is worth — calculate it all at once.
Easily look up effective tiles during a game, while reviewing a hand record, or during a post-game discussion with friends.
You can also check which meld would have been the best move.
Infinite auto-generated "best discard" quizzes let you study mahjong anywhere — even on your commute.
□ Premium Features
・All ads removed
・All features unlocked
□ Plans
・Lifetime plan: One-time purchase for permanent access to all features
・Monthly plan: Monthly subscription for full access (auto-renews every month)
※ See the in-app store screen for pricing details.
□ Restoring a Purchase
When switching devices, you can restore your previous purchase for free. (Settings => Restore Purchase) Make sure you are signed in with the same Apple ID used at the time of purchase.
□ Managing Your Subscription (Monthly plan only)
Go to the Settings app => Your Apple ID at the top => Subscriptions => Select "Mahjong Score Calc II". From this screen you can check your next renewal date and cancel or re-enable auto-renewal.
□ Auto-Renewal (Monthly plan only)
If you do not cancel auto-renewal at least 24 hours before the end of the current period, your subscription will automatically renew. The renewal charge is processed within 24 hours after the end of the current period.
□ Notes
・Purchases made within the app cannot be cancelled through any other method.
・Refunds for the current month are not available.
・Charges are processed through your Apple ID account.
□ Terms of Use
https://mahjongscore-90f16.web.app/en/terms.html
□ Privacy Policy
https://mahjongscore-90f16.web.app/en/privacy.html
In-App Purchases US pricing
麻雀計算機Ⅱ Subscription
プレミアムプラン · Monthly$2.99
One-Time Purchases
一括検索機能を開放$3.99
広告削除$10.99
生涯プレミアム(感謝版)$11.99
生涯プレミアム(セール)$19.99
永久会員権$34.99
Capabilities
In-App Purchases
Accessibility
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Version history 25 versions
Build 887341481v4.14.02026-06-24 15:15:51
Improved the EV discard practice result screen.
- Shows your rank among candidates and how much EV you lost vs. the best discard
- Breaks down the gap vs. the best discard by EV, win rate, and tenpai rate
- Discards within 1% of the best EV are now counted as correct
Build 886987075v4.13.02026-06-15 19:05:10
Added a new question type "Chinitsu Multi Wait". Find every waiting tile in a single-suit tenpai hand, and the result screen shows the winning meld pattern for each waiting tile.
Also added "Daily Mix" — 5 random questions every day. Build up your streak, and enjoy a celebration when you ace all 5. A great daily warm-up for your mahjong brain.
Build 886950712v4.12.02026-06-14 23:22:52
- Added a quick "+Dora" input to manually add dora counts (handy for uradora and similar cases).
- Fixed an issue where Honroutou and Chanta were being counted together when they shouldn't.
Build 886924165v4.11.02026-06-13 18:48:41
Fixed minor issues.
Build 886860603v4.10.02026-06-12 17:56:27
Fixed minor issues.
Build 886530988v4.9.02026-06-04 18:03:28
Fixed minor issues.
Build 886291544v4.8.02026-05-31 00:34:13
Minor fixes and improvements.
Build 885846790v4.7.02026-05-19 16:12:00
- Minor bug fixes
Build 885550290v4.6.12026-05-14 18:21:03
- Bug fixes
Build 885529190v4.5.02026-05-11 16:54:51
- Added expected value calculator. Input your hand to calculate the expected value, win rate, and tenpai rate for each discard
- Added expected value practice problems. Practice choosing the discard with the highest expected value
- Practice problems now support 3-player mahjong
- Bug fixes
Build 885245525v4.4.02026-05-08 07:20:56
Fixed a bug in ad control
Build 885076534v4.3.02026-04-29 20:13:05
· Added support for Nuki Dora in 3-player mahjong. Tap the North tile to register it as a Nuki Dora.
· Fixed a bug where the winning tile could not be changed on the score result screen.
Build 885036742v4.2.02026-04-28 19:09:25
Minor bug fixes.
Build 884985692v4.1.02026-04-27 19:35:32
**M-League Practice is now free to try!**
- M-League Practice (Hora / Dapai / Reach) can now be used up to 3 times per day for free (resets at midnight)
- You can now customize the number of red dora tiles in Settings (0–4 tiles each for 5m, 5p, 5s)
- When a chi meld contains a red 5 tile, a dialog now appears to let you change the red tile count
- Fixed an issue where red dora settings were not carried over correctly for existing users
- Other minor improvements and bug fixes
Build 884929032v4.0.02026-04-26 17:17:45
Redesigned the UI/UX for a smoother experience across a wider range of use cases. If you encounter any issues or have feedback, please reach out via the email option in the Other tab.
Build 857257943v3.2.62023-05-22 21:01:19
[1] クラッシュを修正しました
Build 852788070v3.2.52022-10-15 17:50:06
いくつか不具合を修正しました。
Build 846960799v3.2.42022-02-01 18:28:47
[1] 点数計算練習で役無しが出る確率を1/10に調整しました
[2] 点数計算練習の結果画面に 役一覧 を表示するように修正しました
[3] 点数計算練習の入力時にテキストが見えるように改善しました
[4] 点数計算練習から得点表が見られるように修正しました
[5] アラートをデフォルトのものに修正しました
[6] 受け入れ牌問題で5枚目が出るバグを直しました
[7] iOS15のNavigationBarの戻るを白色に修正しました
Build 846755188v3.2.32022-01-20 15:31:49
[1] 広告が読み込めないときの待ち時間が長いバグを修正
Build 846049505v3.2.22021-12-18 23:06:03
大変申し訳ありませんでした!
以下のバグを修正しました!!
*** v3.2.2
[1] 起動時のクラッシュバグを修正しました
[2] 全画面広告が無限に出るバグを修正しましたf
Build 845879031v3.2.12021-12-12 02:36:51
軽微な修正をしました
Build 843551226v3.2.02021-08-11 22:29:46
[1] 買切りストアをオープンしました。
Build 842972769v3.1.32021-07-07 00:01:27
[1] 軽微な修正
Build 842574611v3.1.22021-06-12 16:24:32
[1] 喰い断の設定がうまくいっていなかったのを修正しました
Build 842467317v3.1.12021-06-01 15:58:23
[1] 報酬型広告のロードができないバグを修正
[2] 得点表の3飜40符ツモの初期表示が間違えていたので修正
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Availability 1 of 1 storefronts
| Region | Language | Price | Ratings | Avg | Version |
|---|---|---|---|---|---|
US | en-US | Free | 1 | 5.0 | 4.14.0 |
Change log 29 changes · US
✎
releaseNotes updated
Improved the EV discard practice result screen.
- Shows your rank among candidates and how much EV you lost vs. the best discard
- Breaks down the gap vs. the b
✎
description updated
◉ Calculate mahjong hand scores instantly!
◉ Practice score calculation with quiz-style questions!
◉ Calculate effective tiles for any hand!
◉ Practice tile eff
✎
subtitle updated
Score, Efficiency & Practice
✎
name updated
Riichi Mah-jong Helper
◆
Version 4.14.0 released
Improved the EV discard practice result screen.
- Shows your rank among candidates and how much EV you lost vs. the best discard
- Breaks down the gap vs. the best discard by EV, win rate, and tenpai rate
- Discards within 1% of the best EV
◆
Version 4.13.0 released
Added a new question type "Chinitsu Multi Wait". Find every waiting tile in a single-suit tenpai hand, and the result screen shows the winning meld pattern for each waiting tile.
Also added "Daily Mix" — 5 random questions every day. Build
◆
Version 4.12.0 released
- Added a quick "+Dora" input to manually add dora counts (handy for uradora and similar cases).
- Fixed an issue where Honroutou and Chanta were being counted together when they shouldn't.
◆
Version 4.11.0 released
Fixed minor issues.
◆
Version 4.10.0 released
Fixed minor issues.
◆
Version 4.9.0 released
Fixed minor issues.
◆
Version 4.8.0 released
Minor fixes and improvements.
◆
Version 4.7.0 released
- Minor bug fixes
◆
Version 4.6.1 released
- Bug fixes
◆
Version 4.5.0 released
- Added expected value calculator. Input your hand to calculate the expected value, win rate, and tenpai rate for each discard
- Added expected value practice problems. Practice choosing the discard with the highest expected value
- Practic
◆
Version 4.4.0 released
Fixed a bug in ad control
◆
Version 4.3.0 released
· Added support for Nuki Dora in 3-player mahjong. Tap the North tile to register it as a Nuki Dora.
· Fixed a bug where the winning tile could not be changed on the score result screen.
◆
Version 4.2.0 released
Minor bug fixes.
◆
Version 4.1.0 released
**M-League Practice is now free to try!**
- M-League Practice (Hora / Dapai / Reach) can now be used up to 3 times per day for free (resets at midnight)
- You can now customize the number of red dora tiles in Settings (0–4 tiles each for 5
◆
Version 4.0.0 released
Redesigned the UI/UX for a smoother experience across a wider range of use cases. If you encounter any issues or have feedback, please reach out via the email option in the Other tab.
◆
Version 3.2.6 released
[1] クラッシュを修正しました
◆
Version 3.2.5 released
いくつか不具合を修正しました。
◆
Version 3.2.4 released
[1] 点数計算練習で役無しが出る確率を1/10に調整しました
[2] 点数計算練習の結果画面に 役一覧 を表示するように修正しました
[3] 点数計算練習の入力時にテキストが見えるように改善しました
[4] 点数計算練習から得点表が見られるように修正しました
[5] アラートをデフォルトのものに修正しました
[6] 受け入れ牌問題で5枚目が出るバグを直しました
[7] iOS15のNavigationBarの戻るを白色に修正しました
◆
Version 3.2.3 released
[1] 広告が読み込めないときの待ち時間が長いバグを修正
◆
Version 3.2.2 released
大変申し訳ありませんでした!
以下のバグを修正しました!!
*** v3.2.2
[1] 起動時のクラッシュバグを修正しました
[2] 全画面広告が無限に出るバグを修正しましたf
◆
Version 3.2.1 released
軽微な修正をしました
◆
Version 3.2.0 released
[1] 買切りストアをオープンしました。
◆
Version 3.1.3 released
[1] 軽微な修正
◆
Version 3.1.2 released
[1] 喰い断の設定がうまくいっていなかったのを修正しました
◆
Version 3.1.1 released
[1] 報酬型広告のロードができないバグを修正
[2] 得点表の3飜40符ツモの初期表示が間違えていたので修正