[jeroenhd]

You can pack the JSON into the renderer if you want. The real meat of the app is the renderer itself, though. For example, you could put the menus and controls in an embedded JSON and then have the app fetch the data view from a server. It's not like your average Twitter or Facebook can show a whole lot without Internet access, so I don't think Apple will reject any apps that don't work without internet access. Add some certificate pinning for good measure and Apple will have to test on rooted iPhone to get access to the data being exchanged, and I don't think the testers really care enough about that stuff anyway. They'll much rather complaintthat you link to your website in a way that angers the Apple gods and other such low hanging fruit.

There are plenty of apps out there that are basically this but with custom logic. Lots of other apps are not much more than a webview with a custom "can't contact the servers" screen.