There was/is a standalone app usable as addon for 2.79 : https://github.com/wjakob/instant-meshes
Results are better then pure blender but not so good as exoside:
There was/is a standalone app usable as addon for 2.79 : https://github.com/wjakob/instant-meshes
Results are better then pure blender but not so good as exoside: