Sudoku - Cozy Numbers

Now with 8 ways to play — Classic, Killer, Star Battle and more — plus collectible mascots, cozy themes and a fresh daily puzzle. No ads, and fully offline.

Cozy Numbers is the warm, ad-free Sudoku that feels like a quiet moment to yourself — calm, beautiful, and made to be enjoyed at your own pace. No ads ever, no sign-up, and no internet needed.

From your very first puzzle to expert-level challenges, there's always something to solve. Play classic 9×9 Sudoku in Easy, Medium, Hard and Expert, then explore a whole world of number and logic puzzles.

8 WAYS TO PLAY • Classic Sudoku — the timeless 9×9 number puzzle • Killer Sudoku — where sums meet logic • Calcudoku-style math puzzles • Star Battle • X (Diagonal), Windoku, Jigsaw and Mini Sudoku • A new Daily Challenge every single day

CALM BY DESIGN • No ads. Ever. • Plays fully offline — anywhere, anytime • No account and no sign-up required • Pencil marks, undo, smart hints and gentle haptics • Forgiving mistakes that keep you in a relaxed flow

MAKE IT YOURS • Dozens of number tilesets — cuddly cats, sushi, planets and more • Soft, easy-on-the-eyes board themes and cozy backgrounds • Collect adorable mascots like Pip the pencil as you play

GROW AT YOUR OWN PACE • 300 hand-crafted levels on a relaxing journey from Meadow to Summit • Build a gentle daily streak • Track your times, statistics and achievements

Unlock every tileset, theme, background, mascot and puzzle mode with a single one-time purchase — or invite two friends and unlock it all for free. No subscriptions, and never pay-to-win.

Take a breath, settle in, and enjoy a little daily logic. Welcome to Cozy Numbers.