FYI - Sync.com has what I would call a 'SPAM' type uninstall process. There is no 'Uninstall" option in the start menu. You cannot uninstall from 'Programs and Files" - It says "You do not have administrative rights to uninstall this program..."
First, you have to open the app, then choose 'uninstall' on one of the tabs. it took me 5 times to get this to work.
That's not all!!! The only way to truely ununstall it is to go to their website and download a special 'exe' file to uninstall it. (Got knows what that does)
I would officially call Sync.com MALWARE. DO NOT INSTALL IT.
The reiews I've read do not correlate to my experience with the product whatsoever.
If you had a different experience, I'd live to hear it. (Before you opine, did you try uninstalling it?)