Yes, both Vectary and SelfCAD offer a Free Trial.
Vectary is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
SelfCAD is designed for Individuals, Large Enterprises, Medium Business and Small Business.
Pricing for Vectary Starts at $12custom when yearly whereas for SelfCAD Starts at $14.99/month when monthly.
Some top alternatives to Vectary includes 3D Slash, SelfCAD, Clara.io, SketchUp, 3ds Max, Blocks, Spline, Rapid Mockup and Concept3D.
Some top alternatives to SelfCAD includes 3D Slash, Clara.io, SketchUp, 3ds Max, ZBrush, formZ, Onshape, BricsCAD and Autodesk Design Review.