Yes, both ArcGIS 3D Analyst and SketchUp offer a Free Trial.
ArcGIS 3D Analyst is designed for Large Enterprises, Medium Business and Small Business.
SketchUp is designed for Individuals, Freelancers, Large Enterprises, Medium Business and Small Business.
The starting price of SketchUp begins at $119/Year, while pricing details for ArcGIS 3D Analyst are unavailable.
Some top alternatives to ArcGIS 3D Analyst includes SURE Aerial, 3-GIS, 3D Slash, Giraffe, 3ds Max, Recap Pro, Intergraph Smart 3D, Agile GIS and Concept3D.
Some top alternatives to SketchUp includes Vectary, 3D Slash, SelfCAD, Clara.io, Giraffe, 3ds Max, Archicad, Revit LT and Lumion.