This app offers a clean and honest Sudoku experience with seven difficulty levels, including an exceptionally challenging Infinity mode. It features a unique puzzle scanner, detailed difficulty ratings, and a rival mode to challenge friends. Enjoy a customizable interface and in-depth statistics on your solving progress.
2.43.1
November 11, 2026
Import a puzzle from a photo. • Scan a puzzle from a newspaper, book or screen, or pick one from your photos. Recognition runs on your device, and your photos never leave it. • Started it on paper? Your handwritten digits are kept as your progress. • Digits worth a second look are marked, so you can fix any cell before you play.
MoreThanks! Already fixed and will come in the next release! Any other feedback is highly appreciated
No, suuudokuuu is ad-free. The app is designed to provide an uninterrupted Sudoku experience without any advertisements.
The hardest difficulty is Infinity mode, featuring 100 extremely difficult puzzles rated SE 10.4 to 11.9. This mode includes renowned puzzles like Arto Inkala's Everest and AI Escargot.
Each puzzle receives a Sudoku Explainer (SE) rating on a 1.0 to 12.0 scale, which measures reasoning difficulty rather than just clue count. This rating is displayed in the level pill, history, and shared links.
Yes, you can scan Sudoku puzzles from newspapers, books, photos, or screenshots. The grid is read on your device, and your photos remain private.
Yes, suuudokuuu features a Rival mode where you can send a puzzle to a friend with your recorded run attached. Your friend can then race your time move for move on the same grid.
suuudokuuu is available on iPhone and iPad, supporting iOS devices.
The latest version is 2.43.1, last updated on November 11, 2026. While specific update frequency isn't detailed, this indicates ongoing development.
suuudokuuu supports 13 languages, making it accessible to a global audience of puzzle solvers.
