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