You can connect your Apple account (Apple ID) to your Glo account to have the option to Sign in with Apple.
To connect to Apple, you may do so on the website under Connect in your Account Settings. Or you can connect to Apple via the iOS app under Profile in Account Settings.
When you do this, you will sign in using the Sign in with Apple option on the login page. You will select this option and then provide the requested security verification to proceed into your account.
