Product: Vembu StorGrid covers most versions of Windows and Windows Server as well as many Linux distros and Mac OS X. However, mobile support is limited to iOS. Cloud storage is via Amazon S3; 30-day free trial.

Company: Vembu Technologies

Key Features:
Download Vembu's feature matrix

Price Range:
StoreGrid client agent for desktops is $30 per year, for servers it's $60 per year. Plug-ins for Exchange, MySQL and other extras range from $30 to $60 annually. Cloud storage runs from $0.24 per GB to $ 0.44 per GB based on volume.