Hi
Our app developer has left the company and due to system changes half the features no longer work.
We've removed the app from the store but now want to remove it form being able to be used by customers.
Is this possible?
If not, what's the best way to stop an app from being used?
Welcome to the forum.
AFAIK, there is no way to prevent users (who may have bought the app) from using.
If you have included a link to your website in the app, that's the place to inform users that app is discontinued and may not work properly.
You say "half" the features no longer work, which means the app still has some features that do work. You might have customers using those features, and if they don't require any services from your company and its servers then they can be left alone as they are.
Or, you could update the app and slim it down so it contains only the features that still work. Yes, I see your app developer has left, but you can easily hire a short-term contractor to update your app to do this. You would also be able to pop up a splash screen explaining the changes.
Most people have automatic app updates enabled so most of your users will be caught by this.
This route would be a cleaner way to handle things, as the app wouldn't show features that don't work anymore, and users wouldn't have to skip round them while using the app.
I guess it depends on whether you want to be nice to your existing customers, or don't really care. (I don't mean that in a bad way!)