Sudoku: Classic, Killer, Daily

A calm, beautiful Sudoku that teaches you to solve — now with Killer Sudoku. Play classic 9×9 Sudoku from Easy to Expert, take on the daily challenge, and try Killer Sudoku's cages and sums. When you're stuck, a smart hint shows the next logical move and explains why it works. FEWER ADS, BY DESIGN • Never an ad in the middle of a puzzle • Never an ad after you win • Premium removes every ad HINTS THAT TEACH • Step-by-step hints highlight exactly the cells that matter • Learn real techniques: Naked and Hidden Singles, Pairs, Pointing Pairs, Box/Line Reduction • Wrong numbers are caught so you can fix them first • Guided Tutor mode with animated walkthroughs (Premium) KILLER SUDOKU • Classic rules plus cages: the numbers in each cage add up to its sum • One free Easy Killer puzzle every day • All Killer difficulties with Premium PLAY YOUR WAY • Auto-notes, pencil marks and automatic note clean-up • Digit-first or cell-first input • Remaining-number counts on the keypad • Your rules: mistake limit, auto-check and hide timer • Light and dark mode, plus Premium board themes • Sounds and haptics you can switch off BUILD A DAILY HABIT • A fresh daily challenge with a free daily leaderboard • Daily goal ring and streaks on your Home screen • Pick up any game exactly where you left off • Confetti and personal-best celebrations • Time Attack and Game Center leaderboards PLAY ANYWHERE • Designed for iPhone and iPad • Sign in with Apple to keep your progress across devices • Available in 12 languages SUDOKU PREMIUM Zero ads, all Killer Sudoku puzzles, Guided Tutor hints, unlimited undo, board themes, the daily challenge archive, advanced stats and cloud sync. • Yearly: $19.99 with a 7-day free trial • Monthly: $3.99 Prices may vary by region. Payment is charged to your Apple ID at confirmation of purchase (or when the free trial ends). Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel in your App Store account settings. Any unused portion of a free trial is forfeited when you purchase a subscription. Terms of Use: https://sudokuoffline.com/terms-of-use-for-sudoku-app/ Privacy Policy: https://sudokuoffline.com/privacy-policy-for-sudoku-app/