Amazon
Yes, both CAD Exchanger and Navisworks offer a Free Trial.
CAD Exchanger is designed for and Large Enterprises.
Navisworks is designed for Large Enterprises, Medium Business and Small Business.
The starting price of Navisworks begins at $78/Month when Billed Yearly, while pricing details for CAD Exchanger are unavailable.
Some top alternatives to CAD Exchanger includes SelfCAD, SketchUp, Intergraph Smart 3D, Navisworks, Qualified, Workvivo, Cadmatic 3D, BricsCAD, Concept3D, IFTTT and Autodesk Design Review.
Some top alternatives to Navisworks includes Autodesk BIM 360, YouBIM, BIMx, BIM Track, Vectorworks Architect, Vectorworks Landmark, Archicad, Revit LT and bimU.io.