Anyone can buy a laser printer, print any book, sell it, take 100% profits, and anyone can buy and read it. But you can't do that with a mobile app because onl

Anyone can buy a laser printer, print any book, sell it, take 100% profits, and anyone can buy and read it. But you can't do that with a mobile app because only Android users can use it, while anyone with an iPhone can't use the app unless you submit to Apple's rules.