Updoku is a classic sudoku puzzle.
A very nice exercise to keep your brain smart and active!
Solve daily sudoku and have fun with addictive animations!
Try it now, its free!
Relax with an easy sudoku or challenge yourself with an hard one!
Updoku comes with 3 levels of difficulty that you can choose from.
Particular attention has been given to the usability of the app to ease the input of the numbers and avoid mistakes and stress.