With 4 difficulty levels, intuitive interface, and all the functions right at your fingertips, this Sudoku app is sure to be your favorite. Interrupted? Exit Sudoku, and the puzzle is saved exactly as you see it! To navigate or input use trackball, touch screen, keyboard or a combination of any of these. In v7.2: Undo/Redo
To navigate or input use trackball, touch screen, keyboard or a combination of any of these. With 4 difficulty levels, intuitive interface, and all functions right at your fingertips, this is by far the best Sudoku app out there. Version 7.2 updates: - Undo / Redo