Quietdoku

Quietdoku is a calm sudoku app with Classic and Killer Sudoku, and no ads, ever. Not between games, not for hints, not anywhere.

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Developed by
warroom
Licensing
Proprietary and Freemium product.
Pricing
One time purchase ranging between $10 and $15, and / or subscription that costs $2 per month + free version with limited functionality.
Alternatives
9 alternatives listed
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Supported Languages
- English
- Chinese
- Japanese
- German
- Korean
- French
- Spanish
- Portuguese
- Italian

Quietdoku was added to AlternativeTo by Zhicheng-Liao on Oct 19, 2026 and this page was last updated Oct 19, 2026.

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What is Quietdoku?

Quietdoku is a calm sudoku app with Classic and Killer Sudoku, and no ads, ever. Not between games, not for hints, not anywhere.

Classic Sudoku: Easy, Medium, Hard and Expert, 12,000 puzzles
Killer Sudoku: Easy to Extreme, 13,000 puzzles; tap ? in a game for the rules and three starter tricks
9 daily challenges (4 classic + 5 killer), the same puzzle for everyone, with leaderboards
Hints only when you ask; Killer cage combinations are off by default
Fully offline: every puzzle is on your phone
No third-party analytics or tracking; no sign-up needed
Optional Pro (unlimited free play, 3 hints per game, printable PDFs). Free users never see ads either.

Available in English, Japanese, Chinese (Traditional and Simplified), German, Korean, French, Spanish, Portuguese and Italian.