They are super bad about updating/supporting the mac version. My entire dev environment is on mac, I hate having to switch over to my bootcamp partition just to use a single piece of software. Had I known about this in advance, I wouldn't have bought the software.
That said, I can get the software to start on Mojave (14.2) with the tips they give in this post. It immediately crashes out as I try to edit the base graphic though, so it's not super useful getting it to boot on mac.