Switchyard

Logic Gates. Real Circuits.

Only for iPhone

Free · Designed for iPhone. Not verified for macOS.

iPhone

Wires cross. A light blinks on. Somewhere in the dark, a gate flips and an output changes from 0 to 1. Switchyard puts logic circuits in your hands. Connect inputs A, B, and C through AND, OR, and XOR gates. Watch a truth table update instantly as you toggle each value. No timers. No penalties. Just cause and effect, wire by wire. Study the Field Manual for worked examples like First Light, All Together, and Odd Company. Each one breaks down its gate sequence and explains the logic in plain language. Then head to Challenges and test what you’ve learned. Twelve puzzles await, each asking you to rewire and reconfigure until your output matches the target pattern. Tap a gate to change its operation. Tap a wire to reroute it. Save a circuit when you find one worth keeping. Reset when you want a clean slate. A LIVE indicator confirms that every change ripples through the circuit in real time. The interface is dark, quiet, and built for focus. Monospaced numerals. Neon-green traces. No noise, no distractions—just the mechanics of digital logic laid bare. Whether you’re a student working through Boolean algebra homework, a hobbyist curious about how circuits actually compute, or someone who simply enjoys puzzles with clear rules and no luck involved, Switchyard gives you a bench to build on and a manual to learn from.

Ratings & Reviews

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Resolved a minor problem that could cause unexpected behavior when reopening specific screens.

Version 2

The developer, D RIBEIRO LTDA, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

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    Information

    Seller
    D RIBEIRO LTDA
    Size
    20.6 MB
    Category
    Education
    Compatibility
    Requires iOS 15.0 or later.
    • iPhone
      Requires iOS 15.0 or later.
    • iPod touch
      Requires iOS 15.0 or later.
    • Mac
      Requires macOS 12.0 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
    © DOMINGOS NETO/ D RIBEIRO LTDA
  • Developer Website
  • Privacy Policy