Storage - Backup
What is the difference in using iCloud as a backup and storage (ie photos, important docs, etc) vs Google? Do I need to use both?
iPad, iOS 12
What exactly you want to achieve?
Backup: to protect your data from loss. Can be used in case of upgrade to new iPhone or loss of iPhone etc..
Import: Store on Mac / PC / External HDD for long-term (Risk of HDD corruption / malfunctioning)
Sync: Keep your data visible and available on all devices that you access to
Upload: (iCloud / Google / Yahoo / OneDrive / DropBox) : Long term data storage with full data protection. Access from anywhere any time