When comparing Syncthing vs Backup Cow, the Slant community recommends Syncthing for most people. In the question“What is the best peer to peer network backup?” Syncthing is ranked 2nd while Backup Cow is ranked 3rd. The most important reason people chose Syncthing is:
Licensed under [MIT](https://github.com/calmh/syncthing/blob/master/LICENSE).
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Free and open-source
Licensed under MIT.
Pro Cross-platform
Available for Linux, OS X and Windows and web.
Pro Works out of the box
Requires no configuration to protect your privacy; it just works.
Pro Reasonably active community forum
Pro Unofficial Android client available
An Android app was created by a third-party.
Pro Expert Features, supports both shared and dedicated cloud storage
If you want a program that has similar functionality to Buddy Backup, but is geared towards more advanced users, and it lets you run your own private cloud, this one is for you.
Pro Supports NAS backup as well
Pro Many options for backup types
It can do mirror backups, incremental backups, differential backups, file sync, it supports filtering, scheduling, encryption, and archiving multiple copies.
Pro It lets you build an internal private cloud storage
You can backup files on all your computers without much hassle.
Pro It has a free edition
Cons
Con In beta
Although mostly stable, such stability is not guaranteed, and support is only community driven. Caution advised.