Sudoku: Killer, Classic, Daily

A calm, ad-free Sudoku you can actually read. Classic and Killer puzzles, five levels, daily challenges, and hints that teach. No ads. No tracking. Fully offline.

Sudoku Calm is the calm, ad-free home for every kind of Sudoku.

No ads, ever. No pop-ups between puzzles, no banners, nothing to interrupt your flow. Just you and the grid.

EVERY KIND OF SUDOKU

• Classic Sudoku across five levels: Easy, Medium, Hard, Expert and Evil
• Killer Sudoku with cage sums, fully included
• A fresh Daily Challenge every day, free for everyone

HINTS THAT TEACH Stuck? A hint points to the next logical move and explains the technique behind it, from naked singles to X-Wing, so you improve every game.

BUILT TO BE READABLE Turn on Large Print or the Comfort theme for big, high-contrast numbers that are easy on the eyes. Eight themes in all, plus full dark mode.

EVERYTHING DONE WELL

• Pencil notes with optional auto-candidates
• Undo and redo, and a mistake limit you can switch off
• Timer, statistics, win streaks and achievements
• Every puzzle has one unique, logical solution, no guessing
• 100% offline. No account, no tracking, nothing to load.

Play free, forever. Unlock Killer Sudoku, Expert and Evil levels, every theme and unlimited hints with a one-time Lifetime purchase, or a weekly or annual subscription.

This app offers a weekly subscription with a 3-day free trial, and an annual subscription. Payment is charged to your Apple ID at confirmation of purchase. Subscriptions automatically renew unless cancelled at least 24 hours before the end of the current period. Manage or cancel subscriptions in your Apple ID Account Settings. Restore purchases from the app settings. A one-time Lifetime purchase is also available and is not a subscription.

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