what is different from icloud and icloud drive and i cloud

iCloud is the overarching cloud-based construct Apple uses to deliver all of their services.

iCloud Drive is cloud-based network storage for users to store their data. Some of this space is used for automated device backups and for data synchronization across multiple user devices.

All Apple users get 5 GB of iCloud storage included w/ their AppleID for no additional charge.

iCloud+ is a subscription-based service providing ADDITIONAL iCloud storage. (Up to 2TB)

iCloud is the storage service as a whole.

iCloud Drive is a way of uploading files to it.

iCloud+ provides more than the free 5GB of space, and some other features.

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