DigitalOcean Backups are automatically-created disk images of our virtual machines called Droplets. Turning backups on for Droplets enables automatic, system-level backups at daily* or weekly intervals, which provide a way to revert to an older state or create new Droplets from a backup.
Backups and snapshots are both disk images of Droplets. Backups are taken automatically daily or weekly and can be retained for seven days or four weeks respectively. Snapshots are taken manually and retained until you choose to delete them. If you want to keep a backup indefinitely, you can convert it to a snapshot.