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# UILaunchToFullScreenByDefaultOnMac

A Boolean value that indicates whether to launch your iPad app in full-screen mode when running on a Mac.

## Discussion

To launch your iPad app in full-screen mode when running in macOS, add this key to your app’s `Info.plist` file and set its value to <doc://com.apple.documentation/documentation/Swift/true>. State restoration can override this behavior if the person using your app exits full-screen mode before quitting the app.

You can also provide a pixel-perfect, edge-to-edge, full-screen experience by including the [`UISupportsTrueScreenSizeOnMac`](/documentation/BundleResources/Information-Property-List/UISupportsTrueScreenSizeOnMac) key with a value of <doc://com.apple.documentation/documentation/Swift/true> in your app’s `Info.plist` file.

[`UILaunchToFullScreenByDefaultOnMac`](/documentation/BundleResources/Information-Property-List/UILaunchToFullScreenByDefaultOnMac) has no effect on your iPad app when:

- The app supports iPad multitasking and resizable windows. For more information, see [`UIRequiresFullScreen`](/documentation/BundleResources/Information-Property-List/UIRequiresFullScreen).
- The app is running on other Apple platforms.
- The app is built with <doc://com.apple.documentation/documentation/UIKit/mac-catalyst>.

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