All Star Sudoku is easy to use and feature rich. Readily accessible Undo and Redo buttons located beneath the grid make it a snap to branch off on an experimental solution path and to effortlessly return if the path leads to a dead-end. All Star Sudoku has an intuitive user interface with a zero learning curve. New users can install the app and begin using it immediately. Includes many thousands of single-solution true one star, two star, three star and four star Sudoku puzzles.

All Star Sudoku also includes an 'Unfilled Sudoku' mode so you can work Sudoku puzzles from your favorite printed sources or use the automatic solver to instantly solve even the most difficult Sudoku puzzles.

All Star Sudoku is easy to use and feature rich. Readily accessible Undo and Redo buttons located beneath the grid make it a snap to branch off on an experimental solution path and to effortlessly return if the path leads to a dead-end. All Star Sudoku has an intuitive user interface with a zero learning curve. New users can install the app and begin using it immediately. Includes many thousands of single-solution true one star, two star, three star and four star Sudoku puzzles.

All Star Sudoku also includes an 'Unfilled Sudoku' mode so you can work Sudoku puzzles from your favorite printed sources or use the automatic solver to instantly solve even the most difficult Sudoku puzzles.