developing Facebook paid application without fb credits?

Question

is it possible to create my FB app in Fb iframe and on pay button it directs to Paypal for payment and returns back to my fb app for further processing without using Fb credits ?

In Facebook payment terms and policies i have read:

NOTE: Per the Facebook Credits Terms, all games on the Facebook Platform (including mobile web apps) must exclusively process payments through Facebook Credits.

Plus if you know any app on FB using payment method without FB credits please specify the names of the apps . thanks

Answer 1

What part of

All games on the Facebook Platform (including mobile web apps) must exclusively process payments through Facebook Credits

is unclear to you?

Answer 2

If the Facebook terms of use say you have to use facebook credits i don't think your app will be enabled if you don't respect that rule.

so even if it might be possible to use paypal directly, it will be a lot of work for nothing.