Yes, both SketchUp and SelfCAD offer a Free Trial.
SketchUp is designed for Individuals, Freelancers, Large Enterprises, Medium Business and Small Business.
SelfCAD is designed for Individuals, Large Enterprises, Medium Business and Small Business.
Pricing for SketchUp Starts at $119/Year whereas for SelfCAD Starts at $11.99/Month when Billed Yearly.
Some top alternatives to SketchUp includes Vectary, 3D Slash, SelfCAD, Clara.io, Giraffe, 3ds Max, Archicad, Revit LT and Lumion.
Some top alternatives to SelfCAD includes 3D Slash, Clara.io, SketchUp, 3ds Max, ZBrush, formZ, Onshape, BricsCAD and Autodesk Design Review.