Calmdoku

A quiet, offline-first Sudoku app with local saves, gentle levels, pencil-friendly notes, and a paper-like interface built for focused play. 100% Ads-free

Calmdoku is a quiet Sudoku app for focused play.

It keeps the board at the center, avoids noisy game mechanics, and is designed to feel closer to solving on paper than using a dashboard. There are no timers, streaks, or distractions. Just Sudoku, saved progress, and a calm interface.

Features:

• Classic 9x9 Sudoku puzzles
• Multiple bundled difficulty levels
• Offline-first play
• Automatic local saves
• Resume unfinished games later
• Pencil-friendly note entry
• Simple hints for approachable solving
• Solution reveal when you want to check the board
• Clean paper-like design for iPhone and iPad
• Localized in English, Danish, Romanian, and Turkish

Free play includes a limited number of game starts and access to early levels. A one-time Premium unlock removes the free-start limit and opens all bundled levels. Premium is tied to your App Store account and can be restored on your devices.

Calmdoku does not require an account. Puzzle progress and saved games stay on your device.