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Open a blank canvas or a built-in example, then drag components from the library onto the grid and connect their pins to draw wires.

Toggle switches and inputs, then run the simulation to watch signals propagate in real time with four-state logic (0, 1, X, Z).

Your circuits save automatically on your device and stay available offline.

When you enable iCloud, projects sync privately between your iPhone and iPad signed into the same Apple Account. You can also export a portable .logiqo file to back up or share a circuit.

If something looks off, try closing and reopening the circuit, or restarting the app.

Before reinstalling, export your circuits as .logiqo files so you can import them again afterwards.

Make sure your device runs iOS 18 or iPadOS 18 or later.

We read every message. Tell us what you're building, what went wrong, and your device and iOS version so we can help faster.