No revenue estimate for the App Store: Apple publishes no install counts, and its star-rating counts don't calibrate to sales the way Steam's written reviews do. Reviews and prices only.
Still leaving mahjong score calculation to someone else at the table? Mahjong Score Drill is a training app built purely for repetition — the fastest way to go from "let me check the table" to answering fu, han, and points instantly. Like a flashcard deck, it's simple by design, and the more you use it, the more it sticks. ■ Learn in 3 steps 1. Memorize with Flashcards Drill fu, han, and points on cards. Yaku and fu cards include tile images showing the actual hand shape. Tap to reveal the answer, then mark it "Got it" or "Not yet" to track your mastery. 2. Test yourself with Drills Enter the real score using the on-screen keypad. Choose from 5 test types — Fu, Yaku & Han (including closed/open and yakuman judgment), Non-Dealer, Dealer, or both — and confirm you truly know it with a 10-question test. 3. Watch your progress in Stats Mastery bars by category and full test history make your improvement visible at a glance. ■ Real Hand Scoring — 300 Hands (Premium, NEW) Score real winning hands directly — fu, han, and the final score, all at once. Practice working it out from an actual hand, just like at the table. ■ SNS Share Image Generator (Free, NEW) Arrange tiles, create a "What to Discard?" or "What's the Score?" quiz image, and share it straight to social media — free for everyone, no purchase required. ■ 668 cards across every category - Fu & Han: how to count fu at a win, han values for every yaku - Score Calculation: Non-Dealer Ron/Tsumo, Dealer Ron/Tsumo scores - Real Hand Scoring: score real winning hands directly (300 hands) - Bonus: glossary, table etiquette, special rules, strategy & tile efficiency, local yaku & yakuman ■ Built-in score table A fu × han lookup table, plus reference tables for "How Fu Works" and "Yaku & Han" — covering Non-Dealer, Dealer, Mangan and above, fu breakdown, and every yaku's han value. ■ Standby Flashcard Shows a flashcard right on your Lock Screen. Tap to move to the next card — review during spare moments without even opening the app. Premium unlocks choosing the card scope and order. ■ Home Screen Widget Shows a flashcard right on your Home Screen — just tap "Again," "Good," or "Easy" to rate it on the spot. Answer a card in a spare moment without ever opening the app. Has its own category scope and order settings, independent from the Standby Flashcard. ■ Weak Cards, Surfaced Automatically Using the difficulty score from the FSRS spaced-repetition algorithm, the Flashcard screen automatically lists the cards you struggle with most — so you always know what to focus on next. ■ Called by Name Set a nickname and the mascot will greet you by name. A small touch that makes daily practice feel a little more personal. ■ Who it's for - Riichi mahjong beginners to intermediate players who want to call their score with confidence - Anyone who's been counting fu "by feel" without really knowing the rules - Anyone who wants to learn a little at a time, whenever they have a spare moment ■ Highlights - Two themes (Notebook / Dark) and 3 text sizes - Switch the display language between Japanese and English - Doubles as a full reference covering local yaku, etiquette, and strategy - Scoring based on standard Riichi mahjong rules as commonly played in Japan ■ Free vs. Premium 【Available for free】 - Score Table (fully viewable) - Flashcards (Non-Dealer categories ① & ②, fully random order) - Test (Non-Dealer score, once per day) - Standby Flashcard (Non-Dealer categories ① & ②, fully random order) - SNS Share Image Generator (fully free) 【Unlocked with Premium (one-time purchase)】 - All 12 flashcard categories (Score, Yaku, Fu, Real Hand Scoring, Bonus) + unmastered-first mode - All 5 test types (Fu, Yaku & Han, Dealer, Non-Dealer, both) + mastery-based mode, unlimited - Full stats view - Choose the Standby Flashcard's category scope and order freely ※In-app purchases are processed through the App Store. Start making score calculation second nature — today.
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