Comparison

都道府県かるたタイムアタックPro vs Mahjong Skill Builder

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

Head to head
About

都道府県かるたタイムアタックPro

Features
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都道府県かるたに挑戦! サクサクと遊べるタイムアタックです。 ◆ ゲーム内容 都道府県かるたです。出題される都道府県の名前を見て、対応する取り札をできるだけ早くタップすることで進めていきます。 全10問が終わった時点のクリアタイムがあなたの記録になり、タイムによってランクが判定されます。 取り札の並びも問題もランダムに生成されるので、何度でも遊べます。 ◆ ゲームモード [標準レベル] 都道府県の名前の最初の文字と、都道府県の形が描かれた札で遊びます。 [上級レベル] 都道府県の名前の最初の文字がありません。都道府県の形だけが描かれた札で遊びます。形を覚えたら挑戦してください。 [超上級レベル] 都道府県の形が半分くらい隠れている札で遊びます。上級ができるようになったらぜひ挑戦してください。 ◆ ゲーム番号システム ランダムに生成されるゲームにはすべて「ゲーム番号」がついています。番号を指定すればいつでも同じゲームが遊べます。 たとえば、別な端末を使っている友だちと同じ番号を指定することで、同じゲームでタイムを競うこともできます。

About

Mahjong Skill Builder

Master Mahjong scoring with structured practice. Learn to identify yaku, calculate han and fu, and determine final scores through five progressive training modes. Track your progress and improve your game with realistic hands and quick, randomized sessions.

Highlights
  • Master Mahjong scoring
  • Learn yaku and han values
  • Calculate fu and final points
  • Five progressive training modes
  • Realistic hand scenarios
  • Progress tracking and feedback
  • Quick, randomized sessions
Features
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Mahjong Quiz A serious training app for mastering Japanese (Riichi) Mahjong yaku, scoring, and reading waits. Struggling with scoring? Can't spot your waits at a glance? You're not alone. This app breaks yaku, han counting, han & fu reading, scoring, and wait recognition into 6 levels you can practice again and again with fun quizzes. It also includes a Hand Scanner: just take a photo of your hand to get its yaku, han, fu, and points. ■ Level up step by step with 6 quiz modes [Lv.0 How many han?] See a yaku name and answer how many han it is worth. An introductory mode for memorizing yaku values. [Lv.1 Which yaku?] Look at a winning hand and identify its yaku. Covers basic and combined yaku, including hands with calls (chi, pon). Switch between "Combined" (select all yaku at once) and "Individual" (select one at a time) answer styles. [Lv.2 Han & Fu?] Read the han and fu of a winning hand. You'll naturally learn how han add up and how fu are counted (melds, wait shapes, and how the hand was won). Hands of mangan or higher can be set to "Han only". [Lv.3 Points? - Score Table] Given han and fu, answer the payment for dealer/non-dealer and ron/tsumo. Train your score table memory, including rounding up to the nearest 100 and mangan through yakuman. [Lv.4 Points? - Winning Hand] An all-round mode: look at a winning hand, judge its yaku, han & fu, and answer the final points. A "Show yaku" hint is available. [Lv.5 What's the wait?] Look at a tenpai hand and find its winning tiles. From basic ryanmen, kanchan, and shanpon waits to irregular three-sided waits and the nine-sided Chuuren Poutou wait. All winning tiles are shown after you answer. ■ Realistic, game-like questions Includes 100 winning hands and 100 tenpai hands. Conditions such as dealer/non-dealer, ron/tsumo, seat and round wind, dora, ura-dora, red fives, riichi, ippatsu, and calls (chi, pon, kan) are shown at a glance. Covers everything from tanyao, pinfu, and yakuhai to sanshoku, ittsu, chanta, and yakuman such as kokushi musou and daisangen. ■ Hand Scanner Take a photo of your hand or pick one from your library, and AI recognizes the tiles and calculates yaku, han, fu, and points automatically. - Choose between high-accuracy "Cloud AI" and fast, offline-capable "Our AI" - Tap any tile to correct it; the result recalculates automatically - Set dealer/non-dealer, ron/tsumo, round and seat wind, riichi, ippatsu, dora count, and calls Perfect for checking scores after a real game. ■ Customize how you learn - Number of choices (4, 6, 8, or 10) - Auto-advance after a correct answer (manual or 1-3 seconds) - Question order (random, ascending, descending) - Daily practice reminder at a time you choose - Languages: Japanese, English, Chinese, Korean, Vietnamese ■ Track your progress The activity calendar shows the days you practiced, and per-mode accuracy shows your strengths and weaknesses. The result screen gives feedback based on your score, and you can share your results on social media. ■ Premium - Remove all ads - Choose the number of questions (10, 50, 100, or endless) - "Weak first" mode that prioritizes questions you got wrong - Unlimited Hand Scanner (free version: up to 10 scans per day) Premium is offered as monthly and annual auto-renewing subscriptions. - Payment will be charged to your Apple ID account at confirmation of purchase. - The subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. - You can manage or turn off auto-renewal in your App Store account settings after purchase. ■ Download now and become a scoring master With repeated practice, you'll be able to calculate scores quickly in your head at the table. Make the most of your spare moments to improve your Mahjong. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://aquapeakstudio.com/privacy-policy

Screenshots

都道府県かるたタイムアタックPro4 screens
Mahjong Skill Builder4 screens

Verdict

The call

The clearest difference is price: Mahjong Skill Builder at Free against 都道府県かるたタイムアタックPro's $0.99. Mahjong Skill Builder also leads on update cadence (every 5 days vs every 42 months) and iOS requirement (15.1 vs 18.0). 都道府県かるたタイムアタックPro's advantage is in-app purchases (none vs 2) and ads (none vs shown). On 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

Mahjong Skill Builder is free to download; 都道府県かるたタイムアタックPro costs $0.99 up front. Mahjong Skill Builder sells 2 in-app purchases, starting at $0.99 per month. 都道府県かるたタイムアタックPro asks for nothing beyond the download.

UpkeepUpdate frequency

都道府県かるたタイムアタックPro ships an update every 42 months, Mahjong Skill Builder every 5 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

Scorecard5 real differences · 3 level
都道府県かるたタイムアタックPro versus Mahjong Skill Builder: the parameters behind the verdict, then further details
Parameter都道府県かるたタイムアタックProMahjong Skill Builder
Price$0.99Free — better
Positive reviews—33.3% of reviews
Update frequencyEvery 42 monthsEvery 5 days — better
AdsNo — betterYes
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.015.1 — better
Further details — not scored
Size40 MB44 MB
Age rating4+4+
DeveloperNaoya SatoKeita Ide

In-app purchases

None

都道府県かるたタイムアタックPro

No in-app purchases

2 purchases

Mahjong Skill Builder

Subscriptions2
  • Skill Builder Premium Monthly$0.991 Month
  • Skill Builder Premium Yearly3 Months trial$9.991 Year

Questions

Is 都道府県かるたタイムアタックPro free?
都道府県かるたタイムアタックPro costs $0.99, with no in-app purchases.
Is Mahjong Skill Builder free?
Mahjong Skill Builder is free to download, with in-app purchases available.
Do 都道府県かるたタイムアタックPro or Mahjong Skill Builder have ads?
Mahjong Skill Builder shows ads; 都道府県かるたタイムアタックPro does not.
Which is updated more often, 都道府県かるたタイムアタックPro or Mahjong Skill Builder?
都道府県かるたタイムアタックPro ships an update every 42 months, and Mahjong Skill Builder every 5 days. Most recently, 都道府県かるたタイムアタックPro was updated on November 3, 2026 and Mahjong Skill Builder on October 31, 2026.

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