Hi Sudoku app for iPhone and iPad

Simple, Free, User-Friendly - The Brain-Boosting Sudoku Game is Here! Download Hi Sudoku now and dive into the world of Sudoku fun.

Whether youre a Sudoku novice or a battle-hardened veteran, youll fall in love with Hi Sudoku!


With Hi Sudoku, challenge yourself with tens of thousands of meticulously crafted puzzles. Catering to all levels from Beginner to Devil, theres always one that fits you perfectly. We assure you that each puzzle is thoughtfully designed and chosen, featuring unique solutions and solvable through logic. As the difficulty rises, so do your solving skills, subtly turning you into a Sudoku master!


Daily Challenges - Unlock three different difficulty levels every day and strive to win monthly trophies.


Hi Sudokus interface is finely crafted for both aesthetics and efficiency. With it, you can:

• Easily highlight numbers by tapping a grid or long-pressing on the number buttons.
• Swiftly switch between number Input and Noting modes, with a quick swipe option for temporary changes.
• Use the Eraser tool or unlimited Undo actions.
• Note cells with Auto-Noting, marking an individual cell or all cells at once.
• Stuck on a tough puzzle? Turn to the Smart Hint system, guiding you on WHAT to do next and WHY.
• Switch to Dark Mode anytime, perfect for nighttime play.


As a free Sudoku game, ads are part of our revenue model, but we guarantee:

• Free users have access to ALL features.
• No ads will pop up to interrupt your puzzle-solving flow.


Were a team passionate about Sudoku. We bring you Hi Sudoku, hoping youll cherish it as much as we do.


Privacy Policy: https://hisudoku.com/docs/privacy_policy/
End User License Agreement: https://hisudoku.com/docs/terms_of_service/