[BitMastro]

You're being downvoted, but you're right, when you publish an app on the store you legally sign a contract, and the contract specifies what you can and cannot do.

Don't like the rules? Don't publish on the play store and let people download the app from you website. It's perfectly doable.

Moreover, an official warning was issued more than an year ago reminding play store developers that all IAP should go thought the play store AND more recently, another famous app with more than 150000 users was removed for using PayPal for payment.

Edit: copying a comment from reddit: Go to a store and put your homemade apple pies on their shelves with a PayPal QR code and see if that store too becomes "unfair".

[bennyg]

Google isn't a store though. They are a distribution channel, who happened to build their own self-checkout lanes after several checkout lanes were already installed, then put caution tape up in front of the other ones. Google needs developers, just like developers need Google (if you're developing for Android and don't mind making waaaaaayyyy less than if you were developing for iOS :p).

[BitMastro]

I didn't downvote you, but these are the facts:

1)The "Play Store" is, like the name says, a store, just like every single store is a distribution channel.

2)While I understand that for some it may look unfair, a contract is a contract, you cannot sign and then ignore the rules of a contract because it's "unfair". You just don't sign it.

3)On iOS the app will not have been accepted in the first place and maybe (I'm just supposing) the developer didn't want to buy a mac, buy an iPhone, learn objective c and pay 100$ a year to make the app for iOS. :P