Sudoku is the classic number puzzle, and this one works entirely offline — no internet connection, no sign-up, no waiting. Fill the grid so every row, column and 3x3 box contains the digits 1 to 9 exactly once. That is the whole rule, and it has kept people busy for decades.

PLAY SUDOKU OFFLINE, ALWAYS

Every puzzle, every difficulty, every daily challenge works with no connection at all. On the train, on a plane, in a waiting room, in a basement with no signal. The app never asks you to go online.

EASY TO EXPERT

Five difficulty levels, from gentle grids that teach you the patterns to expert puzzles that need real technique. Beginners can learn here and experts will not run out of challenge.

BUILT FOR ADULTS

Clean layout, large readable numbers, no cartoon characters and no noise. Designed for people who want the puzzle and nothing else — and comfortable for older eyes.

DAILY SUDOKU

A fresh puzzle every day. Build a streak, track your solve times and watch your average come down as your technique improves.

NO TIMERS, NO PRESSURE

Play at your own pace. Pencil marks for candidates, undo whenever you want, and a hint if you are genuinely stuck. Nothing forces you to hurry.

A REAL BRAIN WORKOUT

Sudoku is pure logic — no guessing, no luck, no trivia. Regular play sharpens concentration and pattern recognition, and it is one of the calmest ways to spend ten minutes.

FREE SUDOKU, FULLY OFFLINE

Free to play with no account required. Download it once and it works forever, wherever you are.

Download Sudoku and start your first grid.