How to auto-update an app in android?

Question

Android

I wrote an application for internal use of clients, it will most likely be distributed as a simple .apk file for downloading from the site.
Question - how to implement an update of the application? Functionality is planned to be added.

Answer 1

Depends on the application.
You can make an offline site and run it in the application using webview , then update only the site.
You can add a checker that will contact your server once a day and see if there is an update, if there is, then download new code (and the downloaded code handler will have to be implemented in apk initially), naturally, this is dangerous.
The most convenient option without any markets is to update apk and upload it to the site, then the application asks if there is a new version, if there is, it prompts the user to download it.
Put it on the yandex market and update it there if you don't want to spend money on Google play

Answer 2

You can also look here https://get.fabric.io/beta
Well, or use the beta channel in the play market.