designing program for Mac Os10.11.5
Is there any goo design program for a Mac OS10.11.5 for my Monoprice 3D Printer 11614?
The printer does not matter. Any software outputting stl files will do.
blender would be a cheap but professional solution. zbrush seems also to be a good software (not tested). For more technical designs try autodesk 360 fusion or Sketch Up.