Will use of the PayPal iOS library get my app rejected?

I'm developin开发者_高级运维g an iPhone app with a subscription model, and I saw this iOS PayPal library: Apple takes 30% of revenue of everything, but PayPal takes significantly less for micro-payments (maxing out at 10%). Naturally, I became interested.

I guess what I'm confused about is this: if Apple wants everyone to use the in-app purchase library for everything (as per this document), why does this PayPal library even exist? Wouldn't any app that used it get rejected?

Has anyone successfully published an app in the app store that uses this library? If so, what was the purchase for? Digital goods? Physical goods? Content?

quote from some forum:

Hello, Apple policy restricts from using our library for accepting digital goods. Use our library should be for hard goods, donations, personal payments and services only.

I hope this clarifies your question.

Thank you.

Update on donations.

Apple has updated their policy (When?). You can no longer use PayPal iOS for donations.

Apple Store Review Guidelines (Retrieved 2014-10-02 05:25pm GMT):

21. Charities and contributions

21.1 Apps that include the ability to make donations to recognized charitable organizations must be free 21.2 The collection of charitable donations must be done via a web site in Safari or an SMS

There are things that you could sell by paypal in iphone apps, imagine that your app exists to promote your business, and not that your app IS your business. I mean...you have a library and use app as another channel to sell the books, or you have an hotel and use app to reserve and then pay the room! In that case you can use paypal.

You cannot use paypal, but you have to use instead in-app purchase, if you sell some additional feature for you app...

I hope this helps