Yes, both Vectorworks Architect and IrisVR offer a Free Trial.
Vectorworks Architect is designed for Medium Business and Small Business.
IrisVR is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Vectorworks Architect Starts at $3,715 whereas for IrisVR Starts at $225/Month.
Some top alternatives to Vectorworks Architect includes YouBIM, SketchUp, BIMx, BIM Track, Vectorworks Landmark, Navisworks, Archicad, Revit LT, Vectorworks Designer and bimU.io.
Some top alternatives to IrisVR includes BIMx, BIM Track, Vectorworks Architect, Vectorworks Landmark, Archicad, Revit LT, Vectorworks Designer, SENTIO VR, Enscape and bimU.io.