yup, "also" meaning "in addition". Dash is not free either, and I'm not its coauthor
The helm-dash repo tagline on GitHub says "Browse Dash docsets inside emacs", so I quickly dismissed it as I don't use Mac.
Reading a bit further, now I see that it doesn't need Dash to be installed. So that's great! I'll see if an ivy/counsel version is out there.
Yep, helm-dash can download docsets from dash servers and use them without the need of Dash whatsoever.
https://github.com/nathankot/counsel-dash .
Enjoy!