Unfolder is described as '3D model unfolding tool to help you create papercraft easily and quickly' and is a 3D Modeler in the photos & graphics category. There are five alternatives to Unfolder for a variety of platforms, including Windows, Linux, iPhone, iPad and Autodesk Maya apps. The best Unfolder alternative is Pepakura Designer. It's not free, so if you're looking for a free alternative, you could try DXF2papercraft or Dunreeb Cutout. Other great apps like Unfolder are Ultimate Papercraft 3D and Foldify.