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Enjoy a distraction-free number puzzle experience with this app. It offers offline play, a one-time purchase model, and helpful tools to aid your gameplay. Track your progress and enjoy customizable themes.
2.1
October 7, 2026
■ iPhone Duo support The board now adapts to both the folded and unfolded screens. When unfolded, the board and controls split left and right, and the board is kept clear of the fold so no cell sits on the crease. ■ Landscape support Rotate the device and the layout follows. In landscape the number pad stands beside the board instead of below it. ■ Proper use of the iPad screen Wide screens no longer leave large empty margins on both sides. Both the board and the number keys are larger. ■ Board sized to your screen The board is now sized from the space actually left on each device. On short screens the number pad shrinks to give the board more room.
MoreNo, Sudoku Zero is completely ad-free. The app is designed to provide an uninterrupted puzzle experience without any banner ads, full-screen interruptions, or video ads.
Sudoku Zero costs $4.99 and is a one-time purchase. There are no subscriptions or in-app purchases, meaning you buy it once and have access to all features and future updates.
Yes, Sudoku Zero works completely offline. You can play on a plane, underground, or with no signal, as the app makes no network connections and all your data stays on your device.
Sudoku Zero offers three difficulty levels: Easy, Medium, and Hard. Each puzzle is generated fresh, ensuring you never solve the same board twice.
Sudoku Zero includes tools such as candidate notes for pencil-marking numbers, hints for when you're stuck, an undo function, highlighting for rows/columns/matching numbers, and error detection.
Sudoku Zero tracks your best score per difficulty, completion rate, and solve times. You can filter this progress by the last 7 or 30 days to monitor your improvement.
Sudoku Zero supports four languages: English, Korean (한국어), Japanese (日本語), and Simplified Chinese (简体中文).
Sudoku Zero has an age rating of 4+ and is suitable for children. Its simple interface and focus on logic puzzles make it accessible for younger players.