I’m very happy to see the Mac version is now joining its Windows sibling in Beta. Both versions can be downloaded and installed from this page. The model shown at the top of the page is of coral – I downloaded it from the bottom of the Memento download.
You can build and save projects in the software without a subscription. Online services (web albums, review ap, slideshow) and final rendering to print-ready files is disabled in trial mode. To unlock extra features, choose between either of the following licensing options: AUTODESK MEMENTO PRICING TRIAL
Keep your money to invest in other aspects of your business.