4 ms·What "service" are they providing? Not stopping you from using someone else's payment processor?by TheCoelacanth 5y agoWhat "service" are they providing? Not stopping you from using someone else's payment processor?gruez 5y agoProviding an entire platform/ecosystem (storefront, operating system, SDK).int_19h 5y agoIf SDK is funded by store commission, then what's the $99 developer fee is for?gruez 5y ago"If roads are funded by fuel taxes, then what are vehicle registration and license renewal fees for?"