That's Apple's problem though and they've been lagging behind for quite some time.
On Android it's possible for example to run Facebook as a web app, because Chrome on Android can deliver notifications, keeping that connection persistent, so even after the page has been closed.
And this is pretty cool because the browser is a much better sandbox than the OS. Now I use an iPhone and I'm very uncomfortable giving access to my photos to Facebook just for uploading a file.
On Android it's possible for example to run Facebook as a web app, because Chrome on Android can deliver notifications, keeping that connection persistent, so even after the page has been closed.
And this is pretty cool because the browser is a much better sandbox than the OS. Now I use an iPhone and I'm very uncomfortable giving access to my photos to Facebook just for uploading a file.