Skudo

Skudo — Sudoku that finally feels alive. Free. No sign-up. Just open the app and play — Classic and Killer Sudoku, a daily brain workout, a real-time AI rival, and online matches with friends. Most Sudoku apps leave you solving alone in silence. Skudo gives you an opponent who actually plays: a smart bot that races you cell by cell, pauses at the hard spots, and pushes back — 100% offline, no waiting for anyone. Beat it, then climb the ladder toward tougher rivals. WHY YOU'LL LOVE SKUDO • Two ways to play — Classic Sudoku and Killer Sudoku, from Easy to Expert. There's always the perfect level for your mood. • Ease in with Easiest Sudoku — smaller 4×4 and 6×6 boards (Classic and Killer), perfect for warming up or learning the ropes. Fully offline. • Race a living opponent — Challenge the AI bot in real time, fully offline. It's the closest thing to a rival in your pocket, anytime, anywhere. • Actually get better — Smart Hints don't just hand you the answer. They explain the exact technique behind the next move, so every game sharpens your logic. • A puzzle every day — The Daily Challenge gives you one fresh, hand-tuned puzzle to keep your streak alive. • Play with friends — Create a private room, share a code, and go head-to-head — or team up in Co-op and solve together as one. • Never lose your place — Solo puzzles, bot matches, and hints all work offline. On a plane, on the subway, or off the grid — your Sudoku goes with you. • Made to feel great — A clean, modern interface, smooth animations, dark mode, cute avatars to make it yours, and full VoiceOver/TalkBack support. • Languages — English and Vietnamese. RESPECTS YOU AND YOUR TIME • No in-app purchases. Everything is included, free. • No account required — start playing instantly. Sign in later only if you want to sync your progress across devices. • Your privacy comes first — protected under GDPR/PDPA, no behavior tracking without your consent, and you can delete your account and data anytime. Whether you want a quiet solo puzzle, a daily habit, a rival to beat, or a match with friends — Skudo is the Sudoku app you'll actually keep coming back to. Download Skudo and start your streak today.