FreeNAS has a commercial company behind it, with a real product and money to back the project with (just as RedHat with their projects) while nas4free is a open

FreeNAS has a commercial company behind it, with a real product and money to back the project with (just as RedHat with their projects) while nas4free is a open source project. I've chosen FreeNAS and its doing its job well to this day (backups, few seervices like SMB/CIFS, plex server and what's most important, software containers).