Calm Sudoku: Daily

525 puzzles. No ads, no tracking, one-time unlock.

Calm Sudoku is a quiet place to play.

One-time purchase. No ads. No subscriptions. No accounts. No tracking. Just Sudoku — offline, on your iPhone and iPad.

A new daily puzzle every day, free forever, plus a generous starter library to work through at your own pace. Unlock the complete catalog once and keep every puzzle, including everything added in future updates.

THREE HONEST DIFFICULTIES Easy, Moderate, and Challenging — each tuned by the solving techniques it actually requires, so the levels feel genuinely distinct.

EVERYTHING YOU NEED, NOTHING YOU DON'T

• Pencil notes with automatic cleanup
• Undo, erase, and duplicate-conflict highlighting
• Check and reveal when you want a hand
• Fill in all notes to skip the bookkeeping
• Best times and a simple history

BUILT TO FEEL QUIET

• A dominant board and calm, restrained controls
• Warm light and dark themes
• No lives, no streak pressure, no notification nagging

ACCESSIBLE BY DESIGN

• Full VoiceOver support
• Dynamic Type
• Reduce Motion
• Hardware keyboard input on iPad
• Adaptive iPhone and iPad layouts

PRIVATE BY DEFAULT Everything stays on your device — Data Not Collected. Your purchase restores across your devices through your Apple ID.

Download free, play the daily forever, and unlock the rest whenever you like.