[brugeman]

The primary difference is that Syncthing is focusing on synchronization, meaning that some files/folders take space on both devices and are kept in sync. It's essentially a cron-ed rsync (Dropbox is built around the same concept internally).

Recall is primarily a file server. The analogy that I have is that it's a zero-config FTP server with a web client with a nicer UX. Auto-sync of select files is on my roadmap, but at this point it's just a 'remote access to your files in a browser'.

Another big diff is that Syncthing is open source, so it's security and privacy are verifiable. Recall is closed source at this point (although you could peek at the JS client to figure out how it works), and I'm not yet ready to make a promise to open it in the near future. So, be aware.

Thank you for your kind words, I really appreciate that!