Rhinoceros is described as 'Rhino can create, edit, analyze, document, render, animate, and translate NURBS* curves, surfaces, and solids, point clouds, and polygon meshes. There are no limits on complexity, degree, or size beyond those of your hardware' and is a 3D Modeler in the photos & graphics category. There are more than 50 alternatives to Rhinoceros for a variety of platforms, including Windows, Mac, Linux, Web-based and iPad apps. The best Rhinoceros alternative is Blender, which is both free and Open Source. Other great apps like Rhinoceros are FreeCAD, SketchUp, SOLIDWORKS and Autodesk 3ds Max.
Rhinoceros alternatives are mainly 3D Modelers, but if you're looking for
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EU-based alternatives if you prefer software developed in the European Union. These are just examples - use the filter bar below to find more specific alternatives to Rhinoceros.
Can't stop laughing. As NURBS was the main concern ("don't use for real life" posted anypoop) and is now fully integrated, what else but snobbery could keep easy-payers wasting money on a proprietary software?