No specific info about version 4.5. Please visit the main page of SugarSync on Mac Informer.
Get Backup 2 RE is a backup and synchronization tool by Belight Software.
A utility that enables users to enjoy the SugarSync service.
Utility that lets you sync your file to the My Cloud device on your network.
Syncthing is a free to use online storage platform.
This app allows you to create files on your Mac and sync them to the cloud.