OCTO Logic Puzzle

Your Next Favorite Puzzle

Free · In‑App Purchases · Designed for iPad

OCTO is a highly addictive logic puzzle, enjoyed by puzzle enthusiasts the world over.    The rules are simple: numbers cannot repeat in octagons, rows, columns and diagonals, and they have to add up to the provided diamond and diagonal sums. Puzzle difficulties range from youngster-friendly to brutally challenging, as you master dozens of techniques that combine position logic and good old-fashioned math.   OCTO puzzle books have sold thousands of copies, the puzzle has appeared in dozens of university newspapers and the OCTO has been featured in local and international puzzle competitions. If you are ready for a new logic puzzle challenge, then OCTO is for you. App Features: - 160 starter puzzles, including all difficulty levels - Extensive instructions, including tips and solving techniques - Work any number of puzzles at the same time! Your progress will be stored for each puzzle and will be available whenever you want to continue - Replay feature allows sharing and "competitive puzzling" - Check puzzle and Undo/Redo features - Notes feature allows you to "pencil in" possible solutions - Choose from a collection of artistic puzzle board designs

Ratings & Reviews

  • 4.9
    out of 5
    30 Ratings

Fixes to in-app purchase logic.

Version 1.2

The developer, OctoFire Studios, 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 Not Collected

    The developer does not collect any data from this app.

    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
      • Doug Gardner
    • Size
      • 52.1 MB
    • Category
      • Puzzle
    • Compatibility
      Requires iOS 12.0 or later.
      • iPhone
        Requires iOS 12.0 or later.
      • iPad
        Requires iPadOS 12.0 or later.
      • iPod touch
        Requires iOS 12.0 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+
    • In-App Purchases
      Yes
    • Copyright
      • © 2020 Doug Gardner
  • Developer Website
  • Privacy Policy

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