Sudoku Offline Inveni

Sudoku the way it should be — no ads, no tracking, no sign-up. Just you and the puzzle. Most free Sudoku apps interrupt you with ads, ask you to watch a video for a hint, or quietly track what you do. This Sudoku doesn't. It's a clean, calm, offline number puzzle built by an independent developer who just wanted a quiet place to play Sudoku and train the brain. WHY YOU'LL LIKE THIS SUDOKU - No ads. Not one — not even "watch a video for a hint." A promise, not a trial. - No sign-up, no account. Open the app and you're playing in two seconds. - No tracking, no data collection. What happens on your phone stays there. - 100% offline. Play this Sudoku anywhere — no signal needed. EVERYTHING INSIDE, ALWAYS FREE - Four difficulty levels: Easy, Medium, Hard, and Expert - Every puzzle has one guaranteed unique solution — no ambiguous boards, ever - Unlimited undo and redo - Pencil notes for marking candidates - Smart highlighting: rows, columns, boxes, and matching numbers - A live count of how many of each number are left - Optional timer you can hide — zero pressure - Configurable conflict checking: real-time, on request, or never - Limited hints per puzzle — never gated behind an ad MADE TO FEEL GOOD - Statistics: your best times and puzzles solved, per difficulty - Light and dark themes, plus extra color themes - Small, fast, and lightweight - Available in 16 languages - No unnecessary permissions — a Sudoku doesn't need your location or contacts Whether you're a beginner learning Sudoku or an expert chasing a faster time, this is a logic puzzle and brain game that respects you. If you've been looking for a free offline Sudoku without the noise — no ads, no tracking, just a calm number puzzle — this is it. Just you and the puzzle.