I ran the SIM on Windows on my Mac. Works OK. If you have a Mac you need to put on
http://virtualbox.com Then you can download a Windows 10 .iso file from Microsoft and install Windows 10 onto Virtualbox.
What happens then on your OSX MAC is you'll see a little window which is Windows 10 running. You can hit the command F to get it full screeen.
Then put in the sim software from Yuneec and the DirectX 11 software and you can run the sim.
When I put in the USB sim radio into the USB on the MAC running Windows via Virtualbox it seemed to work but I had to mess around with some USB settings in Virtualbox.
Well it's a windows world.
If Yuneec tried to tackle OSX it would be twice the work.
I do like MAC OSX. I use windows 10 when I have to.