Our revised backup plan for Echo server is once every two days. We keep backups for a week and backups will get overwritten on each new backup cycle. For the Darla server, we only backup once a week and we keep two weeks worth of backups (two snapshots) for restoration.
VPS customers are eligible for Free weekly backups and there is no backup service offered to unmanaged dedicated servers. Managed dedicated servers are on a tier based system ranging from Daily backups to fortnight backups.