From AI Factory:
Sudoku for Android features 500 Sudoku puzzles over five difficulty levels, covering easy through to medium, hard, and extreme levels. This game has smooth interface and graphics, optional hints and board aids, two sets of Sudoku board art and fonts, and two different modes for notes input to cater for all playing styles. It provides statistics tracking, including fastest times, average times, and completion percentage for each level. Undo supported. Free from ads.