DSynchronize is a classic, small, and free file synchronization tool, developed by Dimio Software from Italy. It has simple and straightforward UI, very stable performance and perfect flow control, supports multiple synchronization modes (manual, real-time, bidirectional, timer, transactional), and can meet different users' requirements for file and folder synchronization and backup.

Syncovery (formerly called Super Flexible File Synchronizer) is currently the most powerful and flexible real-time, automatic synchronization & backup tool, developed by Super Flexible Software from Germany. Since Version 6, it has changed to use now easier to remember and understand new name Syncovery, but its functions are exactly the same as Super Flexible File Synchronizer.