The app offers four logic games: Sudoku, Killer Sudoku, MathDoku, and X-Sudoku, with thousands of puzzles. It provides helpers and step-by-step hints to guide users through puzzles and teach solution strategies.
Allows users to fill 9×9 grids with numbers 1-9. Tap cells to input numbers. Take notes and use hints. Access unique levels. Track progress and train brain skills.
Play with thousands of free puzzles. Solve grids by filling numbers 1-9. Take notes that update automatically as you progress. Adjust difficulty levels and track progress. Share completed puzzles with friends.
