Google Drive offers Free Trial, but Sync.com does not.
Google Drive is designed for Large Enterprises, Medium Business and Small Business.
Sync.com is designed for Medium Business and Small Business.
Pricing for Google Drive Starts at $8/User/Month whereas for Sync.com Starts at $5/User/Month.
Some top alternatives to Google Drive includes CollaborateCloud, Odrive, CloudFiles, Dropbox Business, Zoho WorkDrive, FileCloud, Microsoft OneDrive for Business, Dropbox Professional, DocUp and OpenDrive.
Some top alternatives to Sync.com includes pCloud, Dropbox Business, Google Drive, FileCloud, Box, Microsoft OneDrive for Business, Tresorit, BluSync, OpenDrive and MultCloud.