Sudoku Learn & Play: No Ads

Classic sudoku with zero ads — forever. 1200 puzzles across six honest levels, every one solvable by pure logic. Lessons that teach real techniques. Offline.

Sudoku the way it should be: no ads, no interruptions, no tricks. Just you and the puzzle.

FREE. NO ADS. EVER. The free version is a complete game — not a demo. Unlimited Beginner, Easy, Medium and Hard puzzles — 800 of them — plus hints, statistics and the first lesson. No banner at the bottom, no video after every puzzle, no "watch an ad to continue". Ever.

LEARN REAL TECHNIQUES Most sudoku apps test you. This one teaches you. 19 interactive lessons cover every technique the app itself uses to solve and to hint — each with a guided demo, practice positions and a final exam:

• Naked & Hidden Single • Locked Candidates • Naked & Hidden Pair, Naked & Hidden Triple, Naked Quad • X-Wing, Swordfish • Skyscraper, Two-String Kite, Empty Rectangle • XY-Wing, XYZ-Wing, W-Wing • Simple Colouring

HINTS THAT TEACH A hint here doesn't just fill in a cell. It shows you the pattern on the board, names the technique and explains the logic — so next time you spot it yourself.

NO MISTAKE COUNTER No "three mistakes and game over". Error checking is a setting: off, conflicts only, or full check — with sensible defaults for each difficulty.

CHECKPOINTS FOR HYPOTHESES Want to try an idea without losing your place? Set a checkpoint: everything you enter after it appears in a different color, like switching to another pen. Path proved right — confirm the branch and the digits become permanent. Dead end — roll it back in one tap.

1200 PUZZLES, SIX HONEST LEVELS Beginner, Easy, Medium, Hard, Expert, Master — 200 puzzles each. Difficulty here means one thing only: the hardest technique the puzzle actually requires. Not the number of open cells, not a guess. Beginner needs naked singles, Master needs wings, empty rectangles and colouring.

NEVER A GUESS Every puzzle has exactly one solution and can be solved by pure logic, all the way to the last cell — checked by the app's own solver before shipping. No "assume this and see what happens", no dead ends where the only way forward is trial and error. That also means a hint is always available: there is always a named technique that works.

FIVE THEMES, LIGHT AND DARK Classic, Sepia, Paper, High contrast and Midnight — each one comes in a light and a dark version. Pick the look you like, pick the mode you like, or let the mode follow your system setting. Dark by default.

YOUR DATA STAYS YOURS No analytics, no tracking, no account, no third-party SDKs. The app doesn't collect anything. Progress and statistics live on your device.

WORKS OFFLINE On a plane, in the subway, off the grid — everything works without internet.

MADE FOR IPHONE AND IPAD Full iPad support with a layout built for the big screen.

PREMIUM — ONE PURCHASE, YOURS FOREVER A single one-time purchase (no subscription!) unlocks all 19 lessons, unlimited teaching hints, every theme and the two top levels — Expert and Master. Family Sharing supported.

Languages: English, Deutsch, Français, Español, Português (BR), Italiano, 日本語, 한국어, 简体中文, Українська, Қазақша, Русский.