Sudoku Classic Master

Daily puzzles & brain training

Free · In‑App Purchases · Designed for iPad. Not verified for macOS.

Sharpen your mind with a fresh puzzle every day. Four difficulty levels, streaks, smart hints and a clean, distraction-free design. Free to play — no account needed. Sudoku the way it should be: clean, fast and relaxing. Whether you have five minutes or an hour, Classic Sudoku gives you the perfect number puzzle — no clutter, no login, just you and the grid. TRAIN YOUR BRAIN, YOUR WAY Choose from four carefully balanced difficulty levels — Easy, Medium, Hard and Extreme. Every single puzzle is guaranteed to have exactly one solution, so you can always solve it with logic alone. A NEW CHALLENGE EVERY DAY Come back daily for the Daily Challenge and build your streak. Miss a day? Keep your streak alive with a Streak Freeze. Watch your progress fill up in the monthly calendar and chase your longest run yet. SMART HINTS THAT ACTUALLY TEACH Stuck? The built-in hint doesn't just fill a cell — it explains the logic behind the move (Naked Single, Hidden Single and more), so you get better every time you play. EVERYTHING YOU EXPECT — DONE RIGHT • Pencil notes for tracking candidates • Unlimited undo • Automatic mistake highlighting with a 3-lives mode • Smart number pad that shows how many of each digit are left • Row, column, box and matching-number highlighting • Timer, statistics and personal best times • Auto-save — pick up exactly where you left off BEAUTIFUL IN LIGHT & DARK A calm, modern design that looks great day or night and automatically matches your system appearance. PLAY YOUR WAY Sudoku is free to play. Prefer zero interruptions? A one-time Remove Ads purchase clears all advertising and unlocks extra options like turning off the mistake limit. Download Classic Sudoku and make brain training a daily habit. Your next puzzle is waiting.

Ratings & Reviews

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A big update focused on making daily play more rewarding: • NEW: Daily Challenge calendar — see your whole month at a glance • NEW: Streak Freeze — never lose your streak over a single missed day • NEW: Full Dark Mode • NEW: Smart number pad shows how many of each digit remain • NEW: "Play Again" right from the win screen • Improved hints with clearer explanations • Personalized daily reminders • Performance improvements and bug fixes Thanks for playing! Enjoy the update.

Version 2.1

The developer, Felix Lutz, 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 Linked to You

    The following data may be collected and linked to your identity:

    • Identifiers
    • Usage Data
    • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

Seller
Felix Lutz
Size
8.1 MB
Category
Puzzle
Compatibility
Requires iOS 17.6 or later.
  • iPhone
    Requires iOS 17.6 or later.
  • iPad
    Requires iPadOS 17.6 or later.
  • Mac
    Requires macOS 14.6 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.3 or later.
Languages
English
Age Rating
4+
In-App Purchases
Yes
Copyright
© 2025 Felix Lutz
  • Privacy Policy

    • More by Felix Lutz

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