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Droplr offers Free Trial, but Sync.com does not.
Sync.com is designed for Medium Business and Small Business.
Droplr is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Sync.com Starts at $5/User/Month whereas for Droplr Starts at $2.99/User/Month when Billed Yearly.
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 Droplr includes Scribe, CloudApp, ScreenshotsCloud, FireShot, Snagit, MockVisual, Awesome Screenshot, Snippyly and Clipt.