Sudoku Lumo - Number Puzzle
Brain training logic puzzles
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Train your brain with clean, ad-light Sudoku. Smart hints that teach real solving techniques, three grid sizes, daily streaks, and full offline play. New puzzles anytime.
Sudoku the way it should be: a clean, calm board, puzzles you can actually finish, and hints that make you a better player instead of just handing you the answer.
Every puzzle is generated with exactly one solution and hand-tuned to its difficulty, so you always get a fair, satisfying solve — never a lucky guess.
WHY YOU'LL LOVE IT
• Three grid sizes — 4x4 and 6x6 for a quick warm-up, classic 9x9 for the real thing.
• Three difficulties — Easy, Medium, and Hard, tuned to the techniques each puzzle actually needs.
• Smart hints that teach — every hint names the real solving technique behind it (Naked Single, Hidden Single, Pointing Pair, X-Wing and more), so you learn as you play.
• Pencil notes — jot candidates into any cell, with automatic clean-up as you place numbers.
• Undo, redo & erase — experiment freely and step back anytime.
• Check your board — spot mistakes on demand before they cost you.
• Never lose progress — your game autosaves and is waiting exactly where you left off.
TRACK YOUR PROGRESS
• Lifetime stats: games solved, best time, average time, and total hints used.
• Daily streaks that reward you for showing up every day.
• A history of your recent games, completed and in-progress.
PLAY ANYWHERE
• Fully playable offline — no account, no login, no sign-up. Just open and play.
• Designed for iPhone and iPad, in portrait or landscape.
• A warm, easy-on-the-eyes board built for long, relaxing sessions.
FREE TO PLAY
Sudoku is free. A few ads keep it that way, and extra hints, checks, or a full solve are always optional — never required to finish a puzzle.
Whether you want a two-minute brain break or a deep, tricky 9x9 to unwind with, Sudoku is ready. Download it now and start your streak today.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
bug fix and performance improvements
The developer, Moinuddin Girach, 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:
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Moinuddin Girach
- Size
- 8.7 MB
- Category
- Puzzle
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 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 Moinuddin Girach. All rights reserved.