CMS IntelliCAD is described as 'Highly compatible 2D and 3D CAD solution with native DWG support, multiple-document interface, AutoLISP and ADS compatibility, and seamless Windows integration' and is a popular CAD software in the photos & graphics category. There are more than 50 alternatives to CMS IntelliCAD for a variety of platforms, including Windows, Mac, Linux, Web-based and BSD apps. The best CMS IntelliCAD alternative is FreeCAD, which is both free and Open Source. Other great apps like CMS IntelliCAD are LibreCAD, Autodesk AutoCAD, OpenSCAD and Dune 3D.