iCloud+
iCloud+ gives you everything iCloud offers plus premium features including Apple Invites, iCloud Private Relay, Hide My Email, HomeKit Secure Video support, support for custom email domains, and all the storage you need for your data.
You can subscribe to iCloud+ or to Apple One, which includes iCloud+ and other services. See the Apple Support article Bundle Apple subscriptions with Apple One.
Note: Some iCloud+ features have minimum system requirements. The availability of iCloud+ and its features varies by country or region. See the Apple Support article Availability of Apple Media Services.