Community Tip - Your Friends List is a way to easily have access to the community members that you interact with the most! X
Is mathcad express free trial compatible to MAC OS?
There is, as far as I know, no edition of Prime that runs (natively) on anything other than Windows.
With MacOS you may want to try a windows emulator (Wine?). If it runs Prime Express, it will also run the fully licensed Prime.
Success!
Luc