SketchUp, Blender, Autodesk Maya, MakeHuman, Autodesk 3ds Max, Rhinoceros, Cinema 4D, VRoid Studio, ZBrush, Face Gen, Topogun, Houdini, Wings 3D, Gmsh, Sketcher 3D, MilkShape 3D, Bforartists, Lumix Engine, RealFlow, Quidam, The Forge, libtwo, AutoQ3D Animation are some alternatives to Zmodeler.