A full version program for Android, by 1kpapps.

Do you love numbers and at the same time playing many puzzle games using your mobile device? Then challenge yourself and release your inner critical thinking skills with problem-solving with this game. This is the  Sudoku Classic game for Android. 

The gameplay is very simple a 9×9 square must be filled in with numbers from 1-9 with no repeated numbers in each line, horizontally or vertically. To challenge you more, there are 3×3 squares marked out in the grid, and each of these squares can’t have any repeat numbers either. You can solve it every day using the daily challenge mode. Download and install it now!