Clean Sudoku

Clean Sudoku is classic 9×9 logic stripped back to a calm, distraction-free interface — a Fishtail Apps title built on clean architecture, where the challenge was keeping a feature-rich puzzle app feeling minimal.

• Offline play across difficulties from Easy to Expert, with auto-save and undo/redo
• Camera scan and solver: photograph a newspaper puzzle and play or solve it in the app
• Smart hints that explain the next logical move instead of just filling a cell
• Pencil marks with candidate highlighting, mistake checking, a daily challenge and detailed stats