What does live up to the hype in this kind of situation? And why does every alternative to an incumbent need to be described as, or positioned as, a killer of that incumbent? It rarely, if ever, happens.
Sure, but the App Store rank doesn't just measure new uploads. It measures also app usage and even adds in app updates. New downloads are a very strong component of course, but supposedly Twitter is adding millions of users every month. And most of them ever get the app. Something is clearly off.