Aurora is a different front end for Play Store. I haven't tried Zapstore. They could publish it to F-Droid. At this point I shouldn't chase them like that
For Android you can get it:
- on the Play Store
- as an apk
- the source
- on @Zapstore (not listed on the web)
And you say there's hostility to how you install it?
Aurora is not a different store. It's a different front end to Play Store which is how I was able to install the app. But the app itself refuses to even start because it was not installed through Play Store exactly and I assumed that it was devs choice and this is something I saw with one bank and a couple of freemium in-app-purchases games. And I find that hostile as well as surprising when coming from people allegedly cherishing privacy
But who knows. Maybe it's just an oversight. Now that I wrote that