SugarSync is a cloud service that enables active synchronization of files across computers and other devices. Developed by SugarSync
License: Commercial
Windows Live Mesh (formerly known as Windows Live FolderShare, Live Mesh, and Windows Live Sync) was a free-to-use Internet-based file synchronization application by Microsoft designed to allow files and folders between two or more computers to be in sync with each other on Windows (Vista and later) and Mac OS X. Developed by Microsoft
License: Free Personal
SugarSync offers more robust file versioning and recovery features, making it a better choice for users needing detailed backup options. Windows Live - Sync, being integrated into the Windows ecosystem, is more user-friendly for Windows users but lacks some advanced features.