N-Doku

Sudoku on Steroids

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

Play Sudoku from 6×6 to 16×16 with four difficulty levels, pencil marks, undo, and a smart Number Help mode. Clean, fast, and works in light or dark. N-Doku is Sudoku the way you want it — six board sizes, four difficulty levels, and the tools you actually need while solving. BOARD SIZES FOR EVERY MOOD Play the classic 9×9, warm up on a quick 6×6 or 8×8, or challenge yourself with 10×10, 12×12, or the full 16×16 grid. FOUR DIFFICULTY LEVELS Easy, Medium, Hard, and Extreme — every puzzle is freshly generated and guaranteed solvable. BUILT FOR HOW YOU ACTUALLY SOLVE • Pencil-mark notes for tracking candidates • Number Help highlights numbers already used nearby, so you can toggle on the assist you want • Unlimited undo • Pinch-to-zoom and pan on larger boards • Pause anytime — your puzzle and progress are saved automatically, even if you close the app TRACK YOUR PROGRESS A live timer and per-size, per-difficulty best times keep you coming back to beat your record. DESIGNED TO GET OUT OF YOUR WAY A clean, distraction-free board with clear box shading, light and dark mode, and full support for both portrait and landscape. Available in English, Spanish, German, Italian, Portuguese, and Hungarian. N-Doku is free to play and supports optional ads.

Ratings & Reviews

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Hints and check feature added, more options on play mode

Version 1.1

The developer, Zoltan Homorodi, 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
    • Usage Data

  • Data Linked to You

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

    • Identifiers
    • Usage Data

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
  • Zoltan Homorodi
Size
  • 4.6 MB
Category
  • Puzzle
Compatibility
Requires iOS 18.0 or later.
  • iPhone
    Requires iOS 18.0 or later.
  • iPad
    Requires iPadOS 18.0 or later.
  • Mac
    Requires macOS 15.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 2.0 or later.
Languages
English and 5 more
  • English, German, Hungarian, Italian, Portuguese, Spanish
Age Rating
4+
In-App Purchases
Yes
Copyright
  • © 2026 MrZ Apps
  • Developer Website
  • Privacy Policy

    • More by Zoltan Homorodi