Sudoku App
Classic Sudoku, beautifully simple
🧠 A puzzle for every skill level
Whether you've just learned the rules or you can solve a Hard board on autopilot, there's a difficulty for you. Easy boards to warm up, all the way to Expert puzzles that demand serious technique. The board scales with your skill, not the other way around.
✏️ Notes, hints, and a forgiving undo
Pencil-mark candidates exactly like you would on paper. Tap for a hint when you're stuck. Mistake-checking catches a slip before it spirals into ten minutes of frustration. Undo whenever you change your mind. The tools are there when you want them, invisible when you don't.
✈️ Fully offline, no ads, no nonsense
Plays anywhere — subway, plane, cottage with no signal, doctor's waiting room. No ads interrupting your flow, no subscriptions, no pop-ups asking you to rate the app for the fifth time. Just Sudoku.
📊 Watch yourself get better
Every solve is a data point. Track your wins, your average solve times, your longest streaks, and how your speed changes over weeks. The app remembers which difficulties you crush and which ones still trip you up — so you can see the curve, not just the score. Sudoku gets more interesting when you can measure your own progress.
The right puzzle for the moment
Five-minute brain reset or a long, satisfying solve — your call
Coffee break sharp-up
One Easy puzzle is the perfect five-minute reset between meetings. Wakes up your brain without eating your morning.
Commutes & waiting rooms
Fully offline means no spinning loaders on the subway. Pause mid-puzzle, pick it up later — your progress is always saved.
Wind-down before bed
Quiet, focused, no scrolling. A few rows on a Medium board is a calmer way to put your phone down than doomscrolling.
Like the app? Pro is coming.
If Sudoku App becomes your go-to, a Pro version is on the way. Build your own color schemes, customize sounds, add your own backgrounds — full personalization for the players who want it.
The free version stays free and fully playable. Pro is just a way to make it yours and support development if you'd like to.
Drop us a note if you want to be told when it's available.