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Riichi Mah-jong Helper

App Store·GamesFree + IAP5.00 (1)launched 8.6y agoapp updated 10d agocharts in 2 countries
Scout Score
5

Riichi Mah-jong Helper generates an estimated $0–$3/month in revenue from 1–2 downloads/month on the App Store, according to AppCurrents estimates (updated 2026-08-02).

Estimates updated 02.08.2026 · How we estimate · Ranges reflect model confidence, not exact figures.
Est. revenue / month$0–$3
Est. downloads / month1–2
Estimate confidencelow
PricingFree + IAP
Rating5.00 ★ (1 ratings)
CategoryGames
Released29.12.2017
App last updated25.07.2026
PlatformiOS
Est. downloads / mo
1–2
Est. revenue / mo
$0–$3
Rating velocity / day
0
Chart velocity
Peak rank
Days tracked

Modeled monthly estimate · rating velocity · low confidence

About

◉ 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 p…

Trends & analysis

Chart rank trend

US · overall
Collecting rank historyno snapshots so far. Fills in twice daily.

Why it's surfacing

Scout 5
Newness
3
Breakout
0

Ratings & velocity

★ 0 in window
Total ratings
1
Jun 8Jul 29
New ratings / day
10
Jun 16Jul 29

Rating distribution

100% positive · 1 ratings
5
100%
4
0%
3
0%
2
0%
1
0%

Geographic reach

best rank · 2 storefronts
tw
#94 category
jp
#99 category

Revenue & downloads trend

ARPU $1
Est. revenue / mo · $1
$1$0
Jun 8Jul 26
Est. downloads / mo · 1
1
Jun 8Jul 26

In-app purchases

6 tiers
プレミアムプラン$3
一括検索機能を開放$4
広告削除$11
生涯プレミアム(感謝版)$12
生涯プレミアム(セール)$20
永久会員権$35

Update history

7 updates tracked
  • v4.17.010d ago

    [Bug Fixes] - Fixed an issue in the score calculator where a hand of only terminals and honors was shown as Chanta instead of Honitsu-Routou (All Terminals and Honors)

  • v4.16.013d ago

    [Bug Fixes] - Fixed a case in the score calculator where high-point law was not applied correctly - Fixed a bug in score practice where the "Ippatsu" indicator was missing [New] - Added an annual Premium plan. Try it free for the first 7 days.

  • v4.15.021d ago

    Minor bug fixes and improvements.

  • v4.14.01mo ago

    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

  • v4.13.01mo ago

    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.

Riichi Mah-jong Helper — FAQ

How much money does Riichi Mah-jong Helper make?

According to AppCurrents estimates, Riichi Mah-jong Helper generates approximately $0–$3 per month (low confidence), modeled from its the App Store chart performance, rating velocity, and monetization signals.

How many downloads does Riichi Mah-jong Helper get?

Riichi Mah-jong Helper sees an estimated 1–2 downloads per month on the App Store, per AppCurrents modeling.

Is Riichi Mah-jong Helper free?

Riichi Mah-jong Helper is free to download on the App Store, monetizing through in-app purchases.

What is Riichi Mah-jong Helper's rating?

Riichi Mah-jong Helper holds a 5.00-star average from 1 ratings on the App Store.

When was Riichi Mah-jong Helper released?

Riichi Mah-jong Helper launched on the App Store on 29.12.2017. Its latest version shipped 25.07.2026.

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