Comparison

Riichi Mahjong Scoring Drill vs 麻雀何切るAI

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

Riichi Mahjong Scoring Drill

Master Mahjong scoring with over 12,000 practical problems derived from actual game situations. This app offers customizable practice modes for all skill levels, from beginners learning hand values to intermediate players refining complex calculations. Track your progress with detailed statistics to improve accuracy and speed.

Highlights
  • Over 12,175 practical Mahjong scoring problems
  • Problems based on real game winning hands
  • Customizable practice modes for various needs
  • Time attack for speed-focused practice
  • Detailed performance statistics
  • Supports various local Mahjong rules
Features
Read full description

Featured in "Kindai Mahjong" (Takeshobo), a Japanese mahjong magazine, in its June 2020 issue special "Recommended mahjong apps". [About] A question bank app dedicated to Japanese Riichi Mahjong scoring, with 12,175 questions. Every question is a winning hand that appeared in a real game. Work through a wide variety of real hands and practice scoring the way it happens at the table. With flexible settings, you can practice exactly what you need: counting fu, counting han, or calculating the final points. In the 10-question time attack, compete with players around the world on the ranking. Sharpen your speed and accuracy and aim for the top. From building the basics as a beginner to checking your knowledge as an intermediate player, practice at your own pace and master scoring. [Features] - Simple tap-only controls for smooth, quick practice - 12,175 questions, all based on winning hands from real games - Play in portrait or landscape - Train your speed and accuracy with the 10-question time attack - Submit your time attack records and compete on the ranking (last 30 days / all time) - After answering, see the fu breakdown (base fu, closed ron, sets and pair, etc.) and the fu before rounding up - Choose how to answer points: actual points, scoring chart points, or call style (1000-2000, 1300 all) - Practice the way you want with detailed settings, for example: "I want to repeat certain questions" "I want to practice only counting han first" "I want to focus on complex hands with 50 fu or more" "I want to answer the fu before rounding to check my calculation" "I want to work out the dora from the dora indicators myself" - Check your progress with overall accuracy, accuracy over the last 30 questions, longest streak, and more - Look up the scoring chart and the yaku list at any time - "Browse Questions" lets you review any question by its number - Available in English and Japanese [Rules] Where rules differ by local rule set, the app basically follows the ranked-match rules of Tenhou, an online mahjong game. Main rules (default settings): - No rounded-up mangan (kiriage mangan off) - Open tanyao allowed - Yaku may be completed after calling (atozuke allowed) - A pair of a double wind is 4 fu - 13 han or more is a counted yakuman - No double yakuman - Tsumo pinfu is 20 fu - Open pinfu shape is 30 fu - Chiitoitsu is 2 han 25 fu (no tsumo fu) Rounded-up mangan, open tanyao and tsumo pinfu can be changed in the app settings. [Credits] Illustrations: Mahjong Tofu (麻雀豆腐) Sound effects: OtoLogic (CC BY 4.0) / Koukaon Jiten (効果音辞典) / Koukaon Lab (効果音ラボ) Font: Shippori Mincho (SIL Open Font License 1.1) Icons: Material Symbols (Google / Apache License 2.0) [Disclaimer] - The developer is not liable for any damages arising from the use of this app. - The app's specifications may be changed, revised or updated, and its distribution or service may be suspended or ended without notice.

About

麻雀何切るAI

Features
Read full description

「麻雀何切るAI」 は、実際の対局をもとに、あなたの手牌だけでなく他家の捨て牌や点数状況まで総合的に解析する革新的な何切る学習アプリです。 単純な何切る問題から他家の立直への対応、点数差を考慮した打牌選択、鳴き判断など、さまざまな局面に対応しています。 クイズ形式で楽しみながら最適な打牌を学べるため、初心者から上級者まで幅広く実戦力アップに役立てることができます。 初心者向けの基本的な何切るから、上級者も悩むような難易度の高い局面まで収録。自分のレベルに合わせてステップアップできます。 クイズ形式で楽しみながら“勝ち続けるための一打”を磨いてみませんか?

Screenshots

Riichi Mahjong Scoring Drill4 screens
麻雀何切るAI2 screens

Verdict

The call

The clearest difference is review sentiment: Riichi Mahjong Scoring Drill at 80% against 麻雀何切るAI's 0%. 麻雀何切るAI's advantage is ads (none vs shown) and update cadence (every 5 days vs every 10 days). On price, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Riichi Mahjong Scoring Drill ships an update every 10 days, 麻雀何切るAI every 5 days. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

Scorecard4 real differences · 4 level
Riichi Mahjong Scoring Drill versus 麻雀何切るAI: the parameters behind the verdict, then further details
ParameterRiichi Mahjong Scoring Drill麻雀何切るAI
PriceFreeFree
Positive reviews80.0% of reviews — better0.0% of reviews
Update frequencyEvery 10 daysEvery 5 days — better
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supported—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.012.0 — better
Further details — not scored
Size107 MB94 MB
Age rating17+4+
DeveloperKentaro HosokawaNaoki Nakamichi

Customer experience

Riichi Mahjong Scoring Drill

Written reviews25 reviews
Positive80.0%
Neutral8.0%
Negative12.0%

麻雀何切るAI

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Riichi Mahjong Scoring Drill

No in-app purchases

None

麻雀何切るAI

No in-app purchases

Questions

Is Riichi Mahjong Scoring Drill free?
Riichi Mahjong Scoring Drill is free to download, with no in-app purchases.
Is 麻雀何切るAI free?
麻雀何切るAI is free to download, with no in-app purchases.
Do Riichi Mahjong Scoring Drill or 麻雀何切るAI have ads?
Riichi Mahjong Scoring Drill shows ads; 麻雀何切るAI does not.
Which is updated more often, Riichi Mahjong Scoring Drill or 麻雀何切るAI?
Riichi Mahjong Scoring Drill ships an update every 10 days, and 麻雀何切るAI every 5 days. Most recently, Riichi Mahjong Scoring Drill was updated on October 25, 2026 and 麻雀何切るAI on October 28, 2026.

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