Sudoku Lab: Number Puzzle
4 Levels. Daily. Zen. Hardcore
Free · Designed for iPad. Not verified for macOS.
Sudoku Lab is a clean, focused free Sudoku game for iPhone and iPad. Master 4 difficulty levels, beat the Daily Challenge, and track your streaks.
FOUR GAME MODES
• Classic — 4 difficulty levels (Easy, Medium, Hard, Expert)
• Daily Challenge — same puzzle for every player, every day. Build your streak.
• Zen Mode — practice freely, no lives, no pressure
• Hardcore — unlock by completing 10 Expert puzzles. One mistake = game over.
BUILT FOR FOCUS
• Pencil marks (notes) for advanced play
• Auto-notes shortcut
• Unlimited undo
• Hints when you're stuck
• Conflict highlighting
• Lives system (3 strikes in Easy/Medium, 2 in Hard/Expert)
TRACK YOUR PROGRESS
• 34 achievements to unlock
• Best times per difficulty
• Daily streak tracker
• Detailed stats per mode
FREE TO PLAY
Sudoku Lab is free, supported by ads: a banner on the home screen and an ad between games. Inside a puzzle, an ad only plays if you choose to watch one — for a hint or an extra life. No signup, no subscription — your progress is saved on your device.
ABOUT NIOL
Sudoku Lab is a title from NIOL studio — also makers of Block Lab, a block puzzle game.
Built with care for puzzle lovers.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
New: daily reminders so you never miss your Sudoku, plus privacy and stability improvements.
The developer, Wellington Peres, 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 Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Wellington Peres
- Size
- 47 MB
- Category
- Puzzle
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPad
Requires iPadOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later. - Mac
Requires macOS 12.0 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+
- Contains
Advertising
- Copyright
- © 2026 NIOL