Enjoy a classic 9x9 logic puzzle experience with a daily challenge. This app offers a calm, paper-styled interface playable entirely offline. Unlock the full game with a one-time purchase or subscription.
1.4.0
November 2, 2026
New to Sudoku? A short guided puzzle now walks you through the rules: rows, columns, the 3×3 box, notes and hints. Your first few puzzles are forgiving too. You can replay the tutorial any time from Settings → More. Tapping a daily reminder now opens today's Daily Challenge. Undo now rewinds the board but not your mistakes or hints, so the counters stay honest. The home-screen widget now sits neatly inside clear and tinted home screens. Still no ads, no ad tracking, and no account.
MoreFull access to Solid Sudoku, billed yearly.
No, Solid Sudoku is designed to be ad-free. The developers explicitly state 'No ads, ever.' This commitment to an ad-free experience is maintained throughout the game.
The app is free to try for 7 days, offering access to all features. After the trial, a one-time lifetime purchase or a small annual subscription unlocks the full game. The annual subscription is priced at $2.99/P1Y.
Yes, Solid Sudoku is fully playable offline. Puzzles are generated on your device, meaning you can enjoy the game without an internet connection, even for the Daily Challenge.
Solid Sudoku offers four distinct difficulty levels to cater to all players: Easy, Medium, Hard, and Expert. This allows users to choose a challenge that suits their skill level.
The Daily Challenge presents the same puzzle to every player worldwide each day. You can see how your completion time compares to others anonymously, with results displayed as a percentile.
Solid Sudoku includes helpful tools such as a notes mode for pencil marks, up to 3 hints per game, a full undo/redo function, and smart highlighting for selected rows, columns, boxes, and matching numbers.
Yes, Solid Sudoku has an age rating of 4+, making it suitable for younger players. The game's logic-based gameplay and lack of ads contribute to a safe and engaging experience.
The latest version of Solid Sudoku is 1.3.0, which was last updated on October 29, 2026. This indicates a relatively active development cycle for the application.
