[Quoth]

Originally Posted by Faterson

It turns out it's not. I've now managed to locate KOReader's homepage, under the witty address koreader.rocks, and it explicitly says KOReader isn't available in the Play Store.

Installation instructions for Android are posted on GitHub:

https://github.com/koreader/koreader...ndroid-devices

You contradict yourself.

It's actually easy to install the APK from Git, so KOReader is supported on Android. The Playstore needs a Google Account and active internet connection at install time on the device.

I installed KOReader on the Android Mars by using its native browser to download and then installed it. Very simple.

There are Android things that need Playstore and shouldn't:
1) Accessibility: Google Speech Engine & Android Accessibility Suite. Downloading the Speech packs doesn't use the store.
2) Security / Feature upgrades to built in OS (and Google apps you can't uninstall).

Unlike Apple, most Android phones and tablets can install without the Playstore. I've not found one yet that can't.