SmartWindows offers Free Trial, but Shells.com does not.
SmartWindows is designed for Individuals, Medium Business and Small Business.
Shells.com is designed for Individuals, Large Enterprises, Medium Business and Small Business.
Pricing for SmartWindows Starts at $19.99/Month whereas for Shells.com Starts at $4.95/Month.
Some top alternatives to SmartWindows includes Qualified, Workvivo, WebTool, Shells.com, Shift, Moderne, Paper Workspace, Desktop.com, WorkDesk, IFTTT, Consider and Basaas.
Some top alternatives to Shells.com includes SaaSLicense, vDeskWorks, InvoiceCloud, Qualified, Workvivo, Distributed, Satellite Deskworks, OneDock, Desktop.com, WorkDesk, Desktops by Paperspace and Basaas.