It’s compatible with OS X 10.9 and Retina displays. Sync Folders Pro is perfect for backup to USB, memory cards, disks on remote computers on your network, or folders on Cloud services (Dropbox, etc.).
It synchronizes folders with or without filter for folder names and / or file names. Sync Folders Pro synchronizes any number of local folders on-the-fly whenever there are changes, or on external drives either manually or at a set time (when connected). Sync Folders Pro 4.5.6 MAS Multilingual macOS