Unfortunately there is no Mac version. You could try to use virtualisation with VirtualBox+Windows for example.
I use parallels+windows to run mendix instead of virtualbox, because it performs better.
Only disadvantage is that it is paid. But they have a 14 day trial version which might be enough to get you started.
VMWare Fusion Pro is also not free but works quite well to run Windows on Mac (even my 2013 high end model). I’ve run a ton of apps on both the Mac and Windows side including Mendix Desktop Modeler and only occasionally need to close a few for performance reasons.