SugarSync, like DropBox, when you edit a file or change the directory file structure, all changes will be automatically backed up to the network. SugarSync's storage space is very stable, reliable, and safe, and it has a specific file-sharing function. SugarSync's free account can support two computers synchronizing with the network hard disk space. In addition to the PC client /Mac client provided by SugarSync, users can also access it through mobile phones such as iPhone/ Blackberry /Windows Mobile. If you don't need multiple computers to synchronize files, it is also valuable to use SugarSync as a file backup tool.