Is it necessary to back up all iPhone data?

Regularly backing up iPhone data mitigates the risk of data loss, making backups a necessity for users who store important information on their phones. IOS automatically creates complete iPhone backups and uploads them to iCloud, provided that iCloud is enabled. Users can also create iTunes backups manually through iTunes.

Full backups are helpful when users cannot remember their phone passcodes because they allow the users to restore their phones without losing all their downloaded apps, settings and preferences. Users should create iCloud or iTunes backups prior to updating iOS so the iPhones can be restored from the backups if the updates fail and leave the phones unusable.