title: How to facilitate payment between credit card and bank account through Swift
body: <p>I'm trying to create a way to create a payment between a credit card and a bank account in my iOS app.  I think I've found a way using PayPal's service, but is there a separate API that also could be used for this?</p>
  
  <p>I've tried PayPal's Connect app (can that be used or am I misunderstanding?), but I don't really know how that works yet.</p>