SketchUp, Blender, FreeCAD, Autodesk AutoCAD, SOLIDWORKS, Autodesk Fusion 360, ArchiCAD, LibreCAD, Autodesk Inventor, Catia, Rhinoceros, TurboCAD, Plasticity, Onshape, Packly, BeckerCAD, 3D Orchard, Vector Paint, Autodesk Formit, Dotgrid, Akira, Image to Vector, Simulia are some alternatives to Shapr3D.