SketchUp (formerly Google Sketchup) is a 3D modeling software. Developed by Trimble
License: Freemium
Autodesk Inventor is a robust CAD software primarily geared towards mechanical engineering and detailed product design, offering advanced simulation and parametric modeling features. In contrast, SketchUp is a more accessible tool favored for architectural design and conceptual visualization, known for its user-friendly interface and rapid rendering capabilities.