Best Sudoku machine (except for too bright screen)
I've tried several sudoku apps, but this is the best. The previous version had a less bright screen, which was much better than the new one. It's very tiring for the eyes and we can't change it. Please return V 2.2 background or make it a possible choice for users. Provided this, you will get my 5th star, because the machine is superb. Marcio Brasil Thank you very much for the new 3.1 version with dark background. Now you have my 5th star. Best Sudoku app ever.