Sudoku Pencil

Handwritten logic notebook

Free · Designed for iPad. Not verified for macOS.

Write digits with Apple Pencil, learn the reasoning behind each move, and keep a private notebook of the techniques you practise. Sudoku Pencil turns a classic Sudoku board into a focused, handwritten logic notebook. Select an empty cell and write a full-sized digit or a small candidate mark with Apple Pencil. A quick horizontal scratch works as an eraser. On iPhone or when a Pencil is not available, the same writing pad works with touch. When you get stuck, the built-in Coach does more than reveal an answer. It identifies the next logical idea, explains why it works, highlights the row, column, and box to study, and shows the relevant candidate marks. Your Learning Notebook stays on your device and records the techniques you have studied, Pencil entries, reviewed mistakes, completed puzzles, and personal best times. Features: - Apple Pencil and touch handwriting input - Large-number and small candidate-mark writing modes - Horizontal scratch-to-erase gesture - Technique-based Coach with step-by-step explanations - Naked-single and hidden-single guidance - Candidate-map guidance when a direct placement is not available - Private Learning Notebook with practice history and personal bests - Easy, Medium, and Hard uniquely generated puzzles - Notes mode and automatic peer-note cleanup - Timer and automatic local progress saving - No account required Sudoku Pencil includes banner advertising. Technique coaching is free and never requires watching an advertisement.

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The developer, Mirko Pisano, 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

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • 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
  • Mirko Pisano
Size
  • 22.6 MB
Category
  • Puzzle
Compatibility
Requires iOS 13.0 or later.
  • iPhone
    Requires iOS 13.0 or later.
  • iPad
    Requires iPadOS 13.0 or later.
  • iPod touch
    Requires iOS 13.0 or later.
  • Mac
    Requires macOS 11.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
Languages
  • English
Age Rating
4+
Copyright
  • © 2026 Mirko Pisano
  • Privacy Policy

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