Since I downloaded the 'Free' version, I don't really have a right to complain, BUT, I've installed the Mac version 2 of my Macs now and the Windows version on my Win 10 system. it just doesn't work as advertised.
When I click the HDR option it opens Silver instead. On my Windows machine it won't associate to my Corel programs and won't let me do the association manually.
If I was a suspicious Tin Foil Hat wearing conspiracy theorist, I'd go with Google giving it away to be able to access a bunch of peoples systems. That, or they screwed it up so bad they have to give it away. No doubt
they stripped what they wanted out of the software to add to some funky new program they want to foist on us.