XtremeOR

Math Puzzle Meets Arcade

$0.99 · Designed for iPad. Not verified for macOS.

Solve the falling calculation. Change your answer before impact. Start with simple sums, unlock binary and hex, then face Nightmare. Offline. No ads or extra purchases. Solve the falling calculation and change the answer blocks before they hit your reactor. XtremeOR combines mental arithmetic with arcade pressure: keep editing until contact, get it right and let the blocks pass. SMALL SUMS. RISING STAKES. Start with simple, single-digit addition and a visual tutorial. First-run hints introduce the controls as you play, and longer numbers arrive gradually. You don't need to know binary or hexadecimal to begin. SIX LEVELS TO UNLOCK Follow the reactor's challenge ladder: 1. Decimal addition 2. Binary XOR 3. Hexadecimal addition 4. Hexadecimal XOR 5. Decimal multiplication 6. Hexadecimal multiplication Take on bitwise logic and base-16 numbers as you progress, or keep chasing your best score in the levels you already enjoy. Wrong answers reveal the correct result. KEEP THE REACTOR ALIVE Connected 3D number blocks, electrical arcs and a floating nuclear reactor turn every answer into a physical encounter. Industrial music and sound effects are generated on your device, with a different musical character for each level. EARN NIGHTMARE MODE Reach 10,000 points in each regular level to unlock a mixed-operation danger zone. Operations and row lengths change from round to round. Correct answers rebuild the chamber; mistakes tear it apart. ONE PURCHASE. NO DISTRACTIONS. Play offline with no advertisements, accounts, subscriptions or in-app purchases. No tracking or in-game analytics. High scores and progress are saved locally on each device; they do not sync between iPhone, iPad and Mac. YOUR CONTROLS. YOUR COMFORT. Reduce motion and particles, use a high-contrast playfield or larger interface text, and control master, music and effects volume separately. Evaluation flashes can be switched off. On iPhone and iPad, tap an answer block to cycle its digit. Swipe down to accelerate the falling blocks when you're ready.

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New Arabic and French interfaces, including menus, the visual tutorial and in-game guidance. Arabic navigation reads right to left while numbers and arithmetic remain aligned.

Version 1.1

The developer, Total Hardware Domination Ltd, 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

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    Information

    Seller
    TOTAL HARDWARE DOMINATION LTD
    Size
    27.9 MB
    Category
    Puzzle
    Compatibility
    Requires iOS 17.0 or later.
    • iPhone
      Requires iOS 17.0 or later.
    • iPad
      Requires iPadOS 17.0 or later.
    • Mac
      Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
    Languages
    English and 2 more
    • English, Arabic, French
    Age Rating
    9+
    Copyright
    © 2026 Total Hardware Domination Ltd
  • Developer Website
  • Privacy Policy

    • Supports

    • Family Sharing

      Up to six family members can use this app with Family Sharing enabled.