[WatchDog]

Presumably, in order to become an approved partner, you need to pay a kickback to apple.

[kazanins]

Exactly! Same story as with Apple Pay: if you, as a card issuer, want your customers to use Apply Pay, you need to pay Apple.

Running "software POS" on Android does not require any special "partnerships" with Google, as access to NFC is open.

[aembleton]

And probably an NDA so that you can't reveal the kickback