Sudoku 2 app for iPhone and iPad

Play Sudoku for free all day long!
With this premium digital sudoku version, you will get to play your favorite puzzle game for free. With 4 different modes available and 3 difficulty levels offered, you will be able to challenge and entertain yourself for hours.
If you are not familiar with Sudoku, the game is a number based logic game that will provide brain training at the same time. The objective is to fill a 9×9 grid with digits so that each column, each row, and each of the nine 3×3 sub-grids contains all of the digits from 1 to 9.
The game is packed with various features such as being able to show mistakes or the available numbers. The game was also designed to make it your own with customizable fonts and colors
The game is tablet ready
Will you be able to clinch all the achievements ?