Sudoku is a free game available for iPhone and iPad that offers over 5000+ built-in puzzles to keep you entertained. Whether you're a beginner or an expert, this game has something for everyone. The attractive UI makes it easy to navigate and play, while the pen or pencil mode allows you to make notes and solve the puzzles at your own pace.

One of the standout features of Sudoku is the ability to scan sudoku games with your camera. This innovative feature saves you time and effort by automatically inputting the puzzle into the game. Additionally, the integrated sudoku solver is a handy tool for when you get stuck and need a little help.

Another useful feature is the hint option, which provides you with clues to help you solve the puzzle. This can be a great learning tool for beginners or a helpful nudge for more experienced players. Overall, Sudoku is a well-designed and addictive game that will keep you entertained for hours.