Play 4 brain teasing logic games - Sudoku | Killer Sudoku | MathDoku | X-Sudoku - with thousands of puzzles.
Don't get stuck - 9 digits' helpers guide your next move and teach you solution strategies.
• choose levels from beginner to master
• easily enter digits and pencil marks
• get step-by-step hints for your next move
• unique solutions, no guessing needed
• plenty of settings to tweak your game experience
• no ads
9 digits was created by Ivonne & Marcus who love to play logic games.
• iPad support
• new setting: no automation for removing obsolete pencil marks
Ratings and ReviewsSee All
Best Sudoku App, by far
This is a real tool for players that are serious about Sudoku. There are many many puzzles at many skill levels. The amazing, amazing hint system actually teaches you how to play better. The app is super smooth and responsive at all times. No competition.
The best user interface I have ever seen in a Sudoku game. The use of color and position to stimulate additional parts of the brain is a great plus
Already love it
Looks much more fun and colorful than most sudoku apps and has a good selection of games and an intuitive pencil mark interface
With Family Sharing set up, up to six family members can use this app.