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