I'm assuming you're talking about the phones themselves and not Android as an OS, but your statement is pretty sketchy. I'm no expert, but most Android phones that I'm aware of in the same price range as the iPhone are up-to-par or have superior hardware. Many carriers sell cheap Android phones as well, that are "not as good" because iPhones are expensive. So yeah, 90% of Android phones may be "not as good" as an iPhone, but Apple isn't selling new devices to the under-$500 market, and of course the cheaper phones aren't as good.