You can read books from Amazon/Kindle on iOS because Apple lost an antitrust price fixing case in US federal court and paid nearly half a billion in damages. A

You can read books from Amazon/Kindle on iOS because Apple lost an antitrust price fixing case in US federal court and paid nearly half a billion in damages. Apple conspired with publishing houses to shut Amazon out of the market through leveraging it's huge device platform. Steve Jobs literally said: "The price will be the same... Publishers are actually withholding their books from Amazon because they are not happy." If Apple had won their case it is a serious question if you would have Kindle books to read. https://en.m.wikipedia.org/wiki/United_States_v._Apple_Inc https://en.m.wikipedia.org/wiki/United_States_v._Apple_Inc. All that said - this is reasonable rational behavior for a company. Which is why we also have antitrust laws. ;)