Riichi Mah-jong Helper Downloads & RevenueRiichi Mah-jong Helper · App Store
Not in any tracked top chart right now.
Updated 10 Nov 2026 · rankings refresh through the day
DeveloperKyohei Hakka
CategoryGames
PriceFree
Released
Rating★ 0.0 (0)
Version4.28.1
Age rating4+
First seen by us
25 Sep 2026
25 Sep 2026Installs (est.)50k+ worldwide
Riichi Mah-jong Helper update history & changes
Last change · 13 events since 28 Dec 2017Full timeline ↓📈Entered the top 100📈Charting in a new country✏️New iPad screenshots✏️New screenshots📦Updated to version 4.28.1📦Updated to version 4.28.0🆕First spotted by AppInsider🆕Its developer released another app: Riftly: РПГ подземелье
Full timeline · 13 events
- 📈Riichi Mah-jong Helper entered the top 100Top Free · Casino · SA
- 📈Riichi Mah-jong Helper charting in a new countrySaudi Arabia
- ✏️Riichi Mah-jong Helper: new iPad screenshots· JP
- ✏️Riichi Mah-jong Helper: new screenshots9 screenshots (was 9) · JP
- 📦Riichi Mah-jong Helper updated to version 4.28.1Updated the App Store screenshots for iPhone Duo.
- ✏️Riichi Mah-jong Helper: new iPad screenshots· JP
- ✏️Riichi Mah-jong Helper: new screenshots9 screenshots (was 9) · JP
- 📦Riichi Mah-jong Helper updated to version 4.28.0iPhone Duo に対応しました。画面の開閉やサイズ変更に合わせて、牌の入力・練習画面の表示を調整しました。
- 📈Riichi Mah-jong Helper entered the top 100Top Grossing · Board · JP
- 🆕Riichi Mah-jong Helper first spotted by AppInsider#59 in Top Free · Casino · Japan
- 📦Riichi Mah-jong Helper version 4.27.2Fixed an issue where a chi meld could add a fifth copy of a tile after all four copies had already been used.
- 🆕Riichi Mah-jong Helper: its developer released another app: Riftly: РПГ подземелье
- 🆕Riichi Mah-jong Helper released on the App Store
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
0.0 ★
0 ratings
Measured
Riichi Mah-jong Helper on the App Store
App details
App ID
1329138513
Publisher
Kyohei Hakka
On the store since
Dec 2017
8 years on the store
Minimum OS
iOS 17.6+
iPhone XS and later
Devices
iPhone · iPad
Universal purchase
Content rating
4+
Languages
10
EN FR DE IT JA PL RU ZH ES ZH
Size
649 MB
Also listed in
Entertainment, Board, Casino
Riichi Mah-jong Helper downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Apple publishes no download counts. App Store downloads come from chart positions and daily rating growth per country, calibrated on Google Play install counts; lifetime installs from ratings worldwide × installs per rating. Confidence is the chance the real number is within half to double ours.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| Not charting right now. | ||
Ratings
App Store, worldwide.
Rating
0.0 ★
0 ratings
Measured
Ratings
0
Measured
Review momentum
ⓘ How we measure thisNew ratings a week
under 1
4-week average
Lifetime rating
4.6★
recent stars not readable yet: new ratings are a tiny share of the total
Review momentum
47/100
faster than 45% of Games apps
Review momentum (0-100) blends how fast the app collects ratings compared with other apps in its category (60%), whether that pace is speeding up (25%) and what recent raters give it (15%; recent stars well below lifetime pull it down). Ratings counts are read daily. A jump usually means a launch, a feature, ads or a new review prompt.
About Riichi Mah-jong Helper
◉ 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
◉ 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
Latest updates
4.28.1
Updated the App Store screenshots for iPhone Duo.
4.28.0
iPhone Duo に対応しました。画面の開閉やサイズ変更に合わせて、牌の入力・練習画面の表示を調整しました。
4.27.2
Fixed an issue where a chi meld could add a fifth copy of a tile after all four copies had already been used.
Store changes
What Riichi Mah-jong Helper changed on its store page: name, icon, screenshots, price, size, languages, requirements.
New iPad screenshots
New screenshots
9 screenshots (was 9)
New iPad screenshots
