HyperBackup is the main reason I am still with Synology.
It ticks many boxes for an novice user like me
- easy GUI with many capabilities
- versioning and easy handling of the versions, easy navigation back to time and versions, easy handling/erasing etc
- capability to make multiple backups to USB HDDs beyond other NAS, cloud, local, rsync etc.
- optional encryption
- one can browse and restore from the encrypted backup with a GUI applicatiom on a Linux or Windows PC very easily
probably an experienced user could do all these with rsync or rsnapshot, but not every body can use these
A similar application would be a big plus for FreeNAS.
I'm experiementing with it in an old PC,
and as soon I'll be able to sort out some things like a robust backup to HDDs (that I keep in a separate place)
I'll have a proper FreeNAS system