I released a server rendered progressive web app recently and everything works great so far. However, Android using chrome shows a banner to download the app which is awesome, but it doesn't on iOS. Using Safari, a user needs a few clicks to get to the "Add to homescreen" feature which is bad.
So here I am, I'm satisfied with my PWA, but I would really love to be able to tell the user myself that this app can be added to homescreen.
As far as I can remember, I saw https://marvelapp.com/ doing it to add a prototype to the homescreen.