Synk copies files between folders. It can either synchronize the contents of folders, or can restrict this to a single direction to backup one of the folders to the other.

Here are some typical uses of Synk:

• Synchronize your home directory between your laptop and desktop Macintosh (more info)
• Backup your home directory to an external disk (more info)
• Backup files on a project, using the archive feature to keep every old version of your files (more info)