zlacker

Offline support and push notifications require service workers (or some other API that doesn't exist yet[1])

And for prompting installation, I think the author wants it to appear native.

(Apple does have their own notification API but it requires an account).

>>MaxLei+(OP)
Telling your users how to add your app to the home screen should not be a thing. It makes your product look unprofessional. Prompting a user who has used the web app a bunch of times should be a thing on iOS like it is on Android.