Sudoku Owl: Classic Sudoku

Sudoku Owl is classic sudoku without distractions. No account and no internet needed: just you, your pencil marks and a clean 9×9 grid. A new puzzle every day • One daily challenge, the same for every player: easy on Mondays, diabolical on Sundays • A calendar of every day you solved, with your current and best streak • Solve every day of a month to earn its badge • Missed a day? Replay any day from the last 12 months • An optional reminder at the hour you choose 20,000 puzzles in four levels • Easy, Medium, Hard and Diabolical • The app remembers what you have played, so you don't get the same grid twice • Your game is saved automatically; pick up where you left off Tools that help without getting in the way • Pencil notes that clear themselves when you place a digit • Three free hints per game • Undo and erase • Optional mistake checking with a three-mistake limit, or switch the limit off • Highlights for the row, column and box, matching digits and conflicts • A short how-to-play tour for new players Easy on the eyes • Six board themes: Classic and Paper are free; Ocean, Forest, Sunset and Lavender come in the theme pack • Light and dark mode that follow your phone • Large, clear digits • Nine languages: English, Türkçe, العربية, Deutsch, Français, Español, Português, 日本語 and Bahasa Indonesia Fair ads • No ads while a puzzle is on the screen • Full-screen ads appear only after a finished game, never in your first three games • Videos are always your choice: a second chance, an extra hint or a past daily puzzle • Remove Ads, the Theme Pack and Premium are one-time purchases, not subscriptions Your games stay on your phone. Settings, saved games and statistics are stored on your device. Privacy policy: https://sudokuowl.vercel.app/en/privacy

New: Google Play Games • Leaderboards for your best time on every level • Seven achievements to unlock, from your first solve to a 30-day streak • Open them from Statistics