Clean Sudoku is the classic number puzzle without the clutter: no ads, no subscriptions, just you and the grid. Play 8,000 puzzles across four levels, take on a new Daily Challenge every day, or point your camera at a sudoku in a newspaper and play it or solve it in seconds.
DAILY CHALLENGE
• A new puzzle every day, with a calendar of the days you've solved
• Keep your streak going with an optional evening reminder
SCAN ANY SUDOKU
• Photograph a puzzle from a book or newspaper, or pick one from your photos
• Fix any digit the scanner misread, then play it or see the solution
LEARN AS YOU PLAY
• Hints explain the next logical move instead of just filling in a number
• Notes, automatic notes, and highlighting of mistakes and conflicts
TRACK YOUR PROGRESS
• Your fastest games for every level on a leaderboard
• Statistics with best and average times, and 12 achievements to earn
PLAY YOUR WAY
• Easy and Medium to start; unlock Hard and Extreme as you improve
• Unlimited generated puzzles, or create your own and share it as a code
• Light, Soft and Dark themes and a color-blind-safe board
• Optional timer, sound and three-mistake limit, with one second chance per game
• Plays offline and saves your game automatically
• Available in 14 languages
How to play: fill the 9×9 grid so that every row, every column and every 3×3 box contains the numbers 1 to 9 exactly once.