The app store rejects apps for various reasons. - It did not respect privacy or other legitimate user interests. - It doesn't do anything useful. - It crashe

The app store rejects apps for various reasons. - It did not respect privacy or other legitimate user interests. - It doesn't do anything useful. - It crashes on launch. - It contains infringing IP. - It's malware. - It's a copy/clone of some other existing app. - It was a shitty app. - It didn't follow Apple guidelines or rules. Some of these are different ways of saying the same thing. As a user, I'm glad Apple rejects crap apps. As a developer, I try to make good quality, worthwhile apps and I haven't had any problem with rejections. People probably do quit, but in their case it probably has more to do with their own lack of diligence or caring, and less to do with the platform. However, it is fair to say the platform does not tolerate bullshit as much as some people might hope it would.