What are some alternatives?
When comparing Bvckup 2 and Syncthing, you can also consider the following products
rsync - rsync is a software application for Unix which synchronizes files and directories from one location...
Dropbox - Online Sync and File Sharing
Duplicati - Free backup software to store backups online with strong encryption. Works with FTP, SSH, WebDAV, OneDrive, Amazon S3, Google Drive and many others.
Google Drive - Access and sync your files anywhere
GoodSync - GoodSync provides highly reliable file backup and synchronization for both individuals and businesses.
Mega - Secure File Storage and collaboration