SudokuVault App
Thousands of Sudoku puzzles in your pocket. Four difficulty levels. Pencil marks. Hints. Daily challenges. Works offline. No ads in free mode.
Built for Serious Solvers
Four Difficulty Levels
Easy, Medium, Hard, and Expert. Start where you are comfortable and work your way up.
Pencil Marks
Tap to toggle candidate numbers in any cell. The app tracks them for you so you can focus on solving.
Smart Hints
Stuck? Tap the hint button for a nudge in the right direction. No full solutions, just enough to get unstuck.
Daily Challenges
A new puzzle every day. Track your streak and compete with friends on the daily leaderboard.
Offline Play
No internet needed. Download puzzle packs and solve anywhere. On a plane, on a train, in a waiting room.
Stats and Progress
Track your solve times, accuracy, and completion rates. Watch yourself get faster over weeks and months.
How It Works
Download free
Get SudokuVault from the App Store or Google Play. No account needed to start playing.
Pick your level
Choose Easy, Medium, Hard, or Expert. The app remembers where you left off.
Solve and track
Fill in the grid. Use pencil marks and hints if you need them. Track your times and streaks.