Grid Master X and O

Think ahead. Master the grid.

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

Grid Master X and O takes the classic tic-tac-toe game to a whole new level. Start with the traditional 3×3 board, learn to anticipate your opponent’s moves, and face increasingly complex challenges on boards up to 6×6. FOUR CHALLENGE LEVELS • Easy — 3×3 board, three symbols in a row • Normal — 4×4 board, four symbols in a row • Hard — 5×5 board, four symbols in a row • Master — 6×6 board, five symbols in a row Challenge the computer, build your strategy, and find the winning combination before Grid Master does. FEATURES • Simple rules with progressive challenges • Clean, modern, and intuitive interface • Automatic win and draw detection • Winning combinations are highlighted • Quick games with no registration required • Available in seven languages Easy and Normal levels are free. A single permanent purchase of Grid Master Pro unlocks the Hard and Master levels on the 5×5 and 6×6 boards. Think ahead. Master the grid.

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A multiplayer feature has been added to the PRO version, allowing two players to compete against each other remotely via the Internet.

Version 1.2

The developer, TMSoftware, 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.

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    Accessibility

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

    Information

    Seller
    • Tullio Monti
    Size
    • 3 MB
    Category
    • Strategy
    Compatibility
    Requires iOS 26.0 or later.
    • iPhone
      Requires iOS 26.0 or later.
    • iPad
      Requires iPadOS 26.0 or later.
    • Mac
      Requires macOS 26.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 26.0 or later.
    Languages
    English and 5 more
    • English, French, German, Italian, Portuguese, Spanish
    Age Rating
    4+
    In-App Purchases
    Yes
    Copyright
    • © 2026 - TMSoftware
  • Privacy Policy

    • Supports

    • Family Sharing

      Some in-app purchases and subscriptions may be shareable with your family group when Family Sharing is enabled. Learn More

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