Comment by grishka

There aren't that many hurdles.

1. You download the apk

2. When you try to install it, it tells you it's from an unknown source and the installation was blocked to protect you

3. You tap "settings" and flip a switch to allow installing apps from your browser

4. You go back and tap "install". That's it. It's done. And you won't need to go to the settings the next time, it'll just work.