Sudoku Calm

A calm, ad-free home for every kind of Sudoku. Classic and Killer puzzles, five levels, a fresh daily challenge, and hints that actually teach you.

Download on the App Store

Why Sudoku Calm

  • No ads, ever. No pop-ups between puzzles, no banners, no interruptions.
  • Classic and Killer Sudoku across Easy, Medium, Hard, Expert and Evil.
  • Hints that teach the technique behind every move, from naked singles to X-Wing.
  • Built to be readable with Large Print and a high-contrast Comfort mode.
  • Fully offline. No account, no tracking, nothing to load.

Pricing

Play free, forever: Classic Easy, Medium and Hard plus a daily challenge. Unlock Killer Sudoku, Expert and Evil levels, every theme and unlimited hints with:

  • Lifetime Unlock – one-time purchase, best value
  • Annual or Weekly subscription (3-day free trial on weekly)

Questions?

See Support or email info@appharbour.com.