Just Sudoku - Classic & Killer

Just Sudoku is sudoku the way it should have always been. No ads. No timers counting down to pressure you. No "you've run out of lives — watch a video to continue." No subscription paywall hiding features you expected to be there. Just you, the grid, and the puzzle. That's the whole promise — and it doesn't expire. WHY JUST SUDOKU EXISTS Every sudoku app I downloaded had the same problem: they were great for about ten minutes, until an ad screamed at me between puzzles, or I hit an artificial limit designed to nudge me toward a subscription I didn't want. So I built the app I actually wanted to use. Clean. Honest. Quiet. No tricks. WHAT'S INCLUDED — FREE, ALWAYS Classic Sudoku: the timeless 9x9 logic puzzle in four difficulty levels — Easy, Medium, Hard, and Extreme. Thousands of puzzles, no two the same. Killer Sudoku: the classic variant where numbers in caged groups must sum to a given total. A sharper, more demanding challenge that rewards patience and careful reasoning. Four difficulty levels, same as Classic. Both modes. Fully free. No asterisk. HOW IT WORKS Just Sudoku is free to play at its core — and that will never change. If you want nothing more than a clean, distraction-free place to solve sudoku every day, you will never need to spend a penny. Future premium features — things like online play, additional sudoku variants, and expanded statistics — will be available for a fair, one-time price when they arrive. You'll always know exactly what you're paying for and why. No subscriptions that quietly renew. No confusion. The basics are free because they should be. FEATURES - Classic Sudoku: Easy, Medium, Hard, Extreme - Killer Sudoku: Easy, Medium, Hard, Extreme - Light and dark mode - Unlimited undo - Auto-save - No account required - Fully offline - No ads, ever ABOUT THE DEVELOPER Just Sudoku is built by Tristan Builds — a one-person indie studio with a simple philosophy: software should respect the people using it. That means no dark patterns, no manufactured friction, and no features held hostage behind paywalls that appear after you've already invested your time. More sudoku variants and features are coming. They'll be worth paying for, and you'll know that upfront. Just Sudoku. Nothing you don't want. Everything you need.