I'm playing around with iOS' webapps.
I'd like to configure the webapp to save to the user's home screen with a different url from the original web page.
On Android, you can change "start_url" in the manifest.json to achieve this.
The various customisation options on iOS seem to be less well documented. But I'm hoping there's a meta tag I can use, similar to this one that changes the web app title:
<meta name="apple-mobile-web-app-title" content="[your title]" />
which is documented in this question.