I guess but the important difference is that you can't do transfers with Klarna but you can with PayPal and Klarna does invoices while PayPal doesn't. Also of note is that you can't have a positive balance with Klarna (unless maybe you overpaid for something.) I guess you're right though, they're both proxies but provide one or more of the sub-services themselves in-house, just not the same sub-service.