Removing an App from Your iOS Device
Delete an app from your device to remove all data files associated with the app.
Connect your device to your Mac.
In the Devices organizer, select Applications in the selected device.
Select an app from the list of installed apps.
Click Delete, and confirm that you want to remove the app.
During development, you might remove an app in order to test code that runs only when your app is first launched.
In Xcode, you can remove only the apps that you created. You can’t remove any of the system-installed or third-party apps from the device using Xcode.