Hey, I gave the Mac version a try. It seems to work quite well but with a couple of small niggles.
One thing I notice is that you're still shipping the 32-bit version. Not sure what the reason for that is. It's not the worst thing in the world as we can work around it.
Slightly more annoyingly, the mongodb.so file was missing from the /php/lib/extensions/ext/ directory, which meant that anything that uses MongoDB stopped working. I managed to get round that for php 7.0 by finding my old copy of version 3.6 in the Trash and copying the file to the right place. I don't have a version 7.1 copy of mongodb.so though, I don't suppose you could provide one..?
On the plus side, I saw you fixed the bug from 3.6 where AMPPS would forget the PHP extensions you has selected each time it was loaded. That's much appreciated!
So some small niggles but overall it's looking good, thanks for the update!