This brain game challenges players to fill a 9x9 grid with numbers 1-9, ensuring each row, column, and 3x3 subgrid contains unique digits. It offers multiple difficulty levels and game modes to exercise the mind and improve response speed.




8+ similar games compared and reviewed
Whether you want more options like Digikoo or a completely different take on the same concept, our curated list of 8+ similar apps and games has you covered. Updated for 2026 with the latest ratings and comparisons.




This brain game challenges players to fill a 9x9 grid with numbers 1-9, ensuring each row, column, and 3x3 subgrid contains unique digits. It offers multiple difficulty levels and game modes to exercise the mind and improve response speed.








This game challenges you to fill a 9x9 grid with numbers 1-9, ensuring each row, column, and 3x3 section has unique digits. It's suitable for both beginners learning the ropes and experienced players seeking a mental workout.


This number puzzle game challenges players to fill white squares with digits that sum to the clues provided in small triangles. It's a logic-based crossword variant, offering a mentally stimulating and addictive experience for puzzle enthusiasts.




Engage your mind with a classic logic puzzle available in three grid sizes and difficulty levels. Utilize smart tools like pencil marks and undo, track your progress, and compete globally. Enjoy a beautiful, modern design with dark mode support.


Engage your mind with classic Sudoku puzzles. This app offers unlimited offline challenges across five difficulty levels, with features like error prevention and advanced note-taking. Share puzzles with friends and build a daily streak for a fun, brain-exercising experience.