Karen's Replicator is described as 'Automatically backup files, directories, even entire drives! Karens Replicator copies selected files from one drive/folder to another. Source and Destination folders can reside anywhere on your network' and is a File Sync App in the Backup & Sync category. There are more than 50 alternatives to Karen's Replicator for a variety of platforms, including Windows, Mac, Linux, Android and iPhone. The best alternative is FreeFileSync, which is both free and Open Source. Other great apps like Karen's Replicator are Duplicati (Free, Open Source), rsync (Free, Open Source), GoodSync (Freemium) and BackBlaze (Paid).
AllSync is the professional solution for your data synchronization, imaging, backup, update, replication and archiving needs under Microsoft Windows. AllSync supports all storage media that can be accessed via a drive letter or network path.
Syncrify is an ideal remote backup solution for individuals as well as corporate users, offering a cost-effective way to quickly and easily backup files of any type and size to any machine running a variety of operating systems.
WinDataReflector is a lightweight file synchronization and backup tool that wraps up fast file comparison and transfer algorithms into a simple and clear interface that offers you visual comparison of files and folders.