JustSudoku app for iPhone and iPad

Blank Sudoku is an application focused on Sudoku games.
Its a very small app that runs completely offline. No internet connection required.
It is a pure application that does not collect any data.

Benefits and significance of Sudoku.
Enhance math skills. Sudoku involves numbers and calculations. Playing Sudoku can improve players mathematical abilities, such as numerical cognition, calculation ability, logical reasoning and spatial imagination.
Improve concentration and patience. Playing Sudoku requires players to focus on the numbers, as well as patience and perseverance, as solving Sudoku requires time and thinking.
Reduce stress.
Increase self-confidence.