SudokuCat
Classic sudoku, no ads or wifi
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
A calm, ad-free take on classic 9x9 sudoku. Four levels, notes, hints and undo. Every board is generated fresh on your device with one guaranteed solution.
SudokuCat is a clean, calm take on the classic 9x9 number puzzle — no ads, no sign-up, no countdown pressure. Just you, a grid, and the quiet satisfaction of the last digit clicking into place.
Whether you have five minutes on the bus or an hour to sink into an Expert board, there is always a fresh puzzle waiting. Every grid is generated on your device and checked to have exactly one solution, so you can trust logic — never guessing — to carry you to the end.
WHY YOU'LL LIKE IT
• Unlimited puzzles — every game is generated fresh, so you will never run out
• Each puzzle is verified to have a single, unique solution
• A light, uncluttered interface that stays out of your way
• Works completely offline: no account, no internet, no tracking
FOUR LEVELS, YOUR PACE
• Easy — 44 given numbers, perfect for learning the basics
• Medium — 36 given numbers, the classic daily challenge
• Hard — 30 given numbers, for when you want to think harder
• Expert — 24 given numbers, a true test of advanced logic
Tap the level pill at the top at any time to switch. Your best time for each level is saved automatically, so you always have a record to chase.
TOOLS THAT HELP, NOT SPOIL
• Notes — pencil in candidate numbers in any empty cell
• Auto — fill in every candidate at once, then cross them out as you reason
• Hint — stuck? reveal one correct number and keep going
• Undo — step back through your moves, one at a time
• Erase — clear a cell instantly
Mistakes are highlighted in a soft red the moment you make them, so you always know where you stand. Three errors end the game, which turns a casual fill into a real challenge.
CLEAN AND COMFORTABLE
• Large, easy-to-read digits on a spacious grid
• A clear timer sits right above the board
• Live progress percentage and score as you fill the grid
• Light and dark themes — switch with a single tap
• The number pad shows how many of each digit are left
• The selected cell, its row, column and box are highlighted, along with every matching number
PICK UP WHERE YOU LEFT OFF
Your unfinished game is saved automatically, so you can close the app and come back to exactly the same board, timer and notes.
TRACK YOUR PROGRESS
See your games played, games won and your best completion time for each difficulty level. Everything is stored privately on your device.
YOUR DATA STAYS YOURS
SudokuCat collects no personal information, contains no advertising and no analytics, and never connects to the internet.
Give your brain something good to chew on.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, 延秋 黄, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- 延秋 黄
- Size
- 2 MB
- Category
- Puzzle
- Compatibility
Requires iOS 16.0 or later.
- iPhone
Requires iOS 16.0 or later. - Mac
Requires macOS 13.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026@YQhuang