I\'m building an Android app which for various reasons cannot be listed publicly on the Google Play store.
I have found information about the Google Pla
I would just deploy your app using Google Play "Beta testing and staged rollout":
https://support.google.com/googleplay/android-developer/answer/3131213?hl=en
Your users have to join a Google Group or Google + community that you create so you can limit you audience and make the app non-public on Google Play but still allows your non-public users to update the app via Google Play instead of manual APK installation.
The only downside is that the members of the Google Group or Google + community will only be as private as their Google account provides. So, app users are known to each other but your app will not be public on Google Play.
Can you not use BETA or ALPHA pushes