Sharing the same top quality gameplay, graphics and interface as the rest of our app library, Sudoku Free is an essential download for any Sudoku or brain training fan! You never need a paper puzzle again! - 1500 Sudoku puzzles over 5 difficulty levels, covering easy through to medium, hard, extreme levels. - Super smooth interface and graphics. - Statistics tracking, including fastest times, average times and completion % for each level. - 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.