{ "name": "Sudoku - Number Fun & Day Calm", "tagline": "「Sudoku」· A classic 9×9 logic puzzle for commute pockets", "description": "「Sudoku」· A classic 9×9 logic puzzle for commute pockets.\n「One grid at a time—turn spare minutes into clear thinking」\n\n「Sudoku」 brings familiar 9×9 rules to a pocket session: tap a cell, enter 1–9, and make every row, column, and 3×3 box unique. Boards ship with a single solution. Five difficulties run Easy to Expert—free through Medium—and a free Daily Puzzle keeps a streak without eating your new-game quota. Notes, teaching hints, undo, and erase keep reasoning reversible; a timer, mistake limit, and pause-to-hide board protect focus. Auto-save, review, stats, and themes close the loop so a round can stop, continue, and be remembered.\n\n——— Key Features ———\n1 Classic boards and difficulty rhythm\n · Standard 9×9 unique-solution boards: fill from the bottom number dock; digits that already appear nine times gray out. Same-puzzle Retry clears progress and restarts the timer without swapping the board.\n · Easy through Expert auto-generation: free covers Easy, Normal, and Medium; Hard and Expert are Plus. Free players get three new boards a day; Plus has no daily cap—match difficulty to energy.\n · Daily Puzzle is free for everyone and locks to Normal that day: finish to check in without spending a free new-game slot. Short daily sessions beat weekend marathons; missed days still show in streak stats.\n\n2 Solving aids and in-round focus\n · Toggle notes and pen anytime: mark candidates, then commit. Teaching hints explain why a digit fits, then fill on a second tap; if nothing can be explained, they give the answer. Caps: three free, five Plus.\n · Undo and erase form a forgiveness loop: step back through fills, notes, and hints, or clear the current cell. Mistakes spend lives (three free, five Plus) so you slow down near the limit.\n · Timer, pause-to-hide, and highlights work together: pause hides filled digits; selection highlights row, column, box, and matching digits so clashes jump out.\n\n3 Resume, settle, and personal review\n · Auto-save covers in-progress and paused states: force-quit, switch apps, or take a call and return to the same board and clock.\n · Win when complete; lose when lives hit zero, with paths to continue or start anew. After a fail you can freely review wrong cells; Plus can continue once on the same board—mistake count clears while progress and timer stay.\n · Today’s summary (games, wins, Daily, free games left) is free; full history—totals, win rate, streaks, best times—unlocks with Plus. Warm Paper is free; Quiet Blue, Bamboo Green, and other mood themes recolor board and controls.\n\n——— Real-World Scenarios ———\n· Morning subway: open Normal with notes and pause-to-hide when the seat beside you leans in; resume tonight, then drop a quiet check-in in WhatsApp.\n· Ten-minute lunch: skip TikTok and take Daily against the clock; check in, then return sharper than after a feed binge.\n· Before lights-out: switch to Quiet Blue, lean on undo instead of hints; finish one board before Instagram.\n\n——— Subscription ———\nUnlock Plus with a purchase or subscription (unlimited new games, Hard/Expert, continue-after-failure, full stats, themes, extra hints and lives—details in the app). Daily and Medium stay free. Payment charges your iTunes account; subscriptions renew within 24 hours before the period ends unless you turn auto-renew off. Manage anytime in Account Settings. Weekly plans include a 3-day free trial.\nWeekly — $0.99/week\nMonthly — $1.99/month\nYearly — $2.99/year\n(Prices may vary by country or region; the price shown in the app prevails.)\n\nPrivacy Policy: https://aihejiudeyudaye.github.io/Sudoku/privacy-policy.html\nTerms of Use: https://aihejiudeyudaye.github.io/Sudoku/terms-of-use.html\nContact Us: piaochensuifeng@gmail.com\n\n「Sudoku」——quiet logic you can carry—spare minutes that leave a clear mark.\n【Download Now】Start today with Daily or a Medium warm-up you can pause, resume, and finish.", "url": "https://debuts.app/apps/sudoku-number-fun-day-calm", "category": "Games", "platforms": [ "iPhone and iPad" ], "pricing": "free", "use_cases": [], "audience": [], "links": { "app_store": "https://apps.apple.com/be/app/sudoku-number-fun-day-calm/id6802261622", "google_play": null, "website": "https://aihejiudeyudaye.github.io/Sudoku/terms-of-use.html" }, "icon": "https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/ee/1e/b9/ee1eb90d-faff-7fd2-23bf-37f372af564d/AppIcon-0-0-1x_U007epad-0-1-85-220.png/512x512bb.jpg", "screenshots": [ "https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/5c/8d/70/5c8d70e2-0075-e5bd-c984-9024a832e8c3/iPhone_6.9_01_home.png/320x480bb.jpg", "https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/46/90/49/469049e8-8c97-41f7-3c65-00569d09869f/iPhone_6.9_02_difficulty.png/320x480bb.jpg", "https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/06/ee/22/06ee2248-23da-11a5-a961-5f3d681cb8ae/iPhone_6.9_03_notes.png/320x480bb.jpg", "https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/d6/e9/04/d6e904cd-b06a-76c7-5788-fb769f7bece2/iPhone_6.9_04_hints.png/320x480bb.jpg", "https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/dc/91/84/dc9184d5-c0c0-e3b9-e59a-59058ed0bc89/iPhone_6.9_05_undo.png/320x480bb.jpg", "https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/1a/c8/0e/1ac80e49-4867-4d5d-9695-dae678078415/iPhone_6.9_06_hard.png/320x480bb.jpg", "https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/cb/32/99/cb3299bb-3e6f-7db7-b467-87c7b2b3eba5/iPhone_6.9_07_errors.png/320x480bb.jpg", "https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/0e/d2/73/0ed2732c-45d1-7874-93ef-bef072493d5d/iPhone_6.9_08_language.png/320x480bb.jpg" ], "claimed": false, "verified": false, "maker": "伟英 刘", "upvotes": null, "followers": null, "rating": null, "ratings": 0, "awards": [], "launches": [], "ai_ready": 78, "badges": { "launched": "https://debuts.app/badge/sudoku-number-fun-day-calm?type=launched", "award": "https://debuts.app/badge/sudoku-number-fun-day-calm?type=award", "rating": "https://debuts.app/badge/sudoku-number-fun-day-calm?type=rating" } }