If you’re an iPhone user, there’s a good chance you’ve used Apple’s built-in “sign out” feature to log out of your account after leaving the company or when you’re on a different device. But if you don’t use it often or if you forget to do it, it may be worth checking out how to sign out of Apple ID on an iPhone. To sign out of your Apple ID on an iPhone, open the Settings app and select “Sign Out.” After signing out, your account will be closed and all your data will be backed up. If you ever need to sign in again, just open the Settings app and select “Sign In.”