Sudoku - Classic & Mini
Daily puzzles. No ads, ever.
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Sudoku without the noise. No ads, no accounts, no tracking. Just clean puzzles you can play with one thumb.
A NEW CHALLENGE EVERY DAY
• The Daily Challenge: one puzzle a day, the same for every player.
• Keep your streak going for bonus points, with big rewards at 3, 7, 14 and 30 days.
• An activity calendar in Stats shows every day you played.
• Optional gentle reminder, at most once a day.
EARN POINTS, UNLOCK PUZZLES
• Every correct number earns points. The early, harder numbers are worth the most.
• Trade points for free plays of Mini Hard, Hard, Expert and Master.
• Share a beautiful result card to your Instagram Story or friends.
TWO BOARDS
• Classic 9×9: Easy, Medium, Hard, Expert and Master.
• Mini 6×6 with 2×3 boxes: a quick puzzle for a coffee break.
Every puzzle is freshly generated and has exactly one solution.
MADE FOR ONE HAND
• Floating bars at the bottom: every number, plus Undo, Erase, Notes and Hint, right under your thumb.
• Hold a cell and a 3×3 number pad pops up under your thumb. Slide to the number and let go.
• Lock a number and fill cells with single taps.
• Left- or right-hand layout, light and dark mode.
EVERYTHING YOU NEED
• Pencil-mark notes that clear themselves as you solve
• Undo, erase, hints and a gentle three-mistake limit
• Highlighting of the row, column, box and matching numbers
• Automatic save, statistics and Game Center leaderboards and achievements
• English and Traditional Chinese
FREE TO PLAY, PRO IF YOU WANT MORE
Classic and Mini Easy and Medium, plus the Daily Challenge, are free forever with no ads.
One single Pro purchase unlocks all difficulty levels, Auto Notes, unlimited hints and four extra color themes. No subscription. Family Sharing supported.
PRIVATE BY DESIGN
Sudoku collects no data. No sign-in, no analytics, no ads.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
What's new in 1.5
• iPad support: layouts made for portrait, landscape and Split View. In landscape the board sits on the left with the numbers and tools on the right.
• Small improvements.
Still no ads.
The developer, Hung Yi Kuo, 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
- Hung Yi Kuo
- Size
- 1.9 MB
- Category
- Puzzle
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
- iPhone
- Languages
- English and Traditional Chinese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Sudoku Pro $2.99
- Copyright
- © 2026 Hung Yi Kuo


