How to stop iCloud from asking you to repeatedly sign in on iPhone and iPad. 1  Launch the Settings app. 2  Tap on iCloud. 3  Scroll all the way to the bottom and tap Sign Out. 4  Tap Sign Out in the popup menu.ow to stop iCloud from asking you to repeatedly sign in on iPhone and iPad. 1  Launch the Settings app. 2  Tap on iCloud. 3  Scroll all the way to the bottom and tap Sign Out. 4  Tap Sign Out in the popup menu.