Synchronization or Sync software (or online services) allow sharing data between Mac and Windows PCs, mobile devices, smartphones, and iPhones either on a one time basis or on an ongoing basis.
Software.com reviews 46 products for synchronization, including SugarSync, that has 5 out of 5 in their Rating.
The second (4.8 out of 5) rated product is Dmailer PC Sync 8. Dmailer allows to sync and save personal data including files, emails, contacts, calendars, Favorites/Bookmarks, photos, music and even desktop background, to portable storage devices. Opposite to SugarSync, it doesn’t work through Internet and thereby can not be compared with.
PS
Also Dmailer has nothing common with Dmail – the very old email software for dial-up connections. 
Want to have identical browser settings on every one of your PCs?
How about keeping documents on your office and home PCs synchronized? For these and several other ways to sync your data read 10 Sync Tools every Office Worker Should Know About.