Tap the Account tab (at the bottom). If prompted, enter your password, fingerprint or Face ID.
Tap Apps and add-ons.
From the ‘All Categories’ section, tap Entertainment then tap Learn more in the ‘Apple One’ section. If previously added, tap Manage My Add-ons & Apps then tap Manage in the ‘Apple One’ section.
To view details tap on of the following:
Apple One Individual
Apple One Family If you subscribe to Apple One Family, you can use Family Sharing to share all included Apple services with up to five other family members.
Tap Enroll.
From the ‘Pick a line to activate’ dropdown, select the desired line then tap Confirm. Selected line must have iOS 14.7 or later to activate Apple One
To continue, select the checkbox then tap Confirm to accept the Terms & Conditions.
Select the desired line then tap Send link.
A confirmation text is sent to the applicable mobile number with additional instructions to complete enrollment.