Uninstalling Apps on a Device
Uninstall an app to remove all data files associated with the app.
For iOS and tvOS apps, connect a device to your Mac. For watchOS apps, connect an iPhone paired to an Apple Watch.
In the Devices window under Devices, select your device.
Under Installed Apps, select the app you want to remove from the list.
Click the Delete button (–) below the table, and in the dialog that appears, click Delete.
For watchOS apps, Xcode removes the WatchKit extension app on the iPhone and the WatchKit app on the paired Apple Watch.