Hello JMagnus !
You are an Apple fan, OK ?
If you are talking about the DJI Flight Simulator, the one used to educate Phantom pilots for professional
shooting, you need a computer running Windows 10 (or possibly some older MS OS).
If you by any chance have got an IMAC, you can install Windows 10 on it.
Apple has detailed instructions on how to do that.
It might be possible to use a MACBook also, you have to research !
Possibly IPad, I have no idea if you can multi boot it.
I installed Win 10, latest version, om my IMAC 21.5" with Mojave 10.14.2, and then the simulator.
You need to check the requirements, a few controllers are not supported.
I have an Mavic Pro, so I have problems (for now anyway).
My reason for doing the install, is that I do not have a sufficient powerful Windows machine.
Good Luck !