To do this, a user needs to use Wi-Fi services. Although Apple has not officially explained why the service is not available for cellular users, this prevents people from accruing substantial cellular charges for performing a full backup. While a full backup isn’t possible, backing up some files and media is feasible.
iCloud Drive
iCloud Drive is Apple’s online storage service that enables access to files from all Apple devices. Although it cannot execute a complete iCloud backup, it allows users to upload certain files and media from their device without a Wi-Fi connection. All users receive 5GB of free storage, with additional space available through subscription fees.
