Easy
46–51 clues
The Sudoku app with no ads. Scan a paper puzzle, replay every game, and see stats on every solve. A hard-edged board and an honest score.
Scan to get it on your iPhone
Tap a cell. Type a digit.
46–51 clues
36–45 clues
28–35 clues
24–27 clues
Photograph a paper puzzle. Keep playing on the phone.
Send a challenge. A ghost runs the same board beside you.
Mistakes add time. The clock is what you took; the score is what you earned.
Nothing pops up mid-puzzle and nothing covers the board. A free Sudoku app should let you think.
Photograph a puzzle from a newspaper, magazine or book. The app reads the grid and loads it so you can finish it on your phone.
Every move is recorded. Watch a solve back move by move to find the cell that cost you the time.
Solve times by difficulty, mistakes, the techniques each puzzle needed, and a player rating that moves as you get better.
One Sudoku of the day, the same for everyone. Compare your time with friends or race a ghost on the same board.
Puzzles are graded by what they need, from naked singles to advanced chains. Each technique has an animated demo, so a hard Sudoku becomes a lesson.
No. There are no ads in the game: nothing interrupts a puzzle, covers the board or sits between you and the next game.
Yes. Point the camera at a printed puzzle and the app reads the grid, checks it and loads it so you can finish it on your phone.
Yes. Every move is recorded, so you can watch a finished game back move by move and see where you hesitated or made a mistake.
Solve times by difficulty, mistakes, the techniques each puzzle needed and a player rating that moves as you improve.
Yes. A new puzzle of the day is the same for everyone, so you can compare your time with friends.
Yes. Puzzles are graded by the techniques they require, from naked singles to advanced chains, and each technique has an animated demo.