How do you automatically update the app used by multiple users?

How to automatically update the app used by multiple users?

What do you mean by "update the app" ?

  • Simply update the data on the existing app?
    or
  • Install a new apk on the users device? If your app is on Google Play then this should just "happen"

No is not on Google Play. Is just me and my wife and few others. Is a private App. When a make a new revision now I need to send .apk via WhatsApp and they need to install it. There is any automatic procedure to do it? Always thanks to you.