Yes, both Modo and CL3VER offer a Free Trial.
Modo is designed for Individuals, Freelancers, Medium Business and Small Business.
CL3VER is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Modo Starts at $1,909 whereas for CL3VER Starts at $36/User/Month when Billed Yearly.
Some top alternatives to Modo includes Mari, 3D Slash, SketchUp, Adobe Dimension, 3ds Max, Maya, Wings 3D, Cinema 4D and formZ.
Some top alternatives to CL3VER includes 3D Slash, SelfCAD, Clara.io, SketchUp, SkyCiv, 3ds Max, Cinema 4D, Renderfy, Rapid Mockup and Concept3D.