This effects UIWebView which web apps, technically called web clips just so happen to use. However many normal apps use UIWebView to display HTML content. Any

This effects UIWebView which web apps, technically called web clips just so happen to use. However many normal apps use UIWebView to display HTML content. Any app you use the jumps to a web page but stays in the app definitely does, some apps you might not even know you're using HTML UI instead of Cocoa, the integration is pretty tight, sometimes it simply easier to make parts of your UI in HTML and embed as a resource and just point UIWebView to it. So yes users use it all the time, but usually as part of a real app.