Nonet - A Calmer Sudoku

Nonet is a calmer Sudoku: a quiet, uncluttered take on the classic 9x9 puzzle, made for people who play to unwind, not to be nagged. No ads, ever. No fake urgency. Just the puzzle, done with care.

FAIRLY GRADED, HAND-CRAFTED PUZZLES
• Every puzzle is generated on your device with exactly one solution. Guaranteed unique, never a guess.
• Difficulty is graded by the hardest human technique a puzzle actually requires, from Gentle to Expert, so the label means what it says.
• Endless puzzles, always offline. Share any puzzle by a short code, or play one a friend sends you.

PLAY YOUR WAY
• Relaxed mode: unlimited mistakes, no fail-state. Pure, calm solving.
• Standard mode: play with lives when you want a challenge.
• Cell-first or number-first input, your choice. Pencil marks, auto-candidates, undo/redo.
• Optional hints that name the technique and teach the next logical step, never just "here's the answer".
• Optional mistake-checking. Hide the timer for a calm session. Nothing is forced.

A REASON TO RETURN, GENTLY
• A daily puzzle, the same for everyone, with a streak you're never guilt-tripped about.
• Personal stats, records, and achievements. Mistakes are counted for everyone, Pro included.

BUILT WITH CARE
• Plays offline. No account. Local-first: your data stays on your device.
• Accessibility first-class: colourblind-safe states, large text, reduce-motion, screen-reader labels.

FREE, WITH ONE FAIR PRO UNLOCK
Nonet is free and fully playable forever, with no ads of any kind. A single one-time Pro unlock (no subscription) removes the Standard-mode fail-state and adds unlimited hints, extra calm themes, and full stats history. An optional 14-day full-access trial you can start any time from the upgrade screen. No consumables, no currency, ever.