Hi!
We have a task in our backlog to create a native Mac build, and it’s on our radar for future development, but we don’t have a definite timeline yet.
Have you tried our cloud version of the editor? Beta release of the Shapespark cloud editor
It has been designed to work seamlessly across any platform, including Mac. It should provide you with a similar level of functionality (however, there are some limitations related to scene size and maximum number of lightmaps).
Best regards