In-app purchase of credits to be used in external website?

I'm thinking of implementing in-app purchases for my iphone app. My question is whether or not I can implement a credit system. I'd like开发者_StackOverflow to allow users of the app to purchase various quantities of credits. The credits would then be stored in a DB for that user's account. The user can then visit a dedicated website for the app and use the credits they've purchased through the app to buy various products and merchandise, etc. Will Apple allow this type of in-app purchase or do I need to take a different approach?

This is not allowed, have a look at the App store Review Guidelines, especially section 11.

11.3 - Apps using IAP to purchase physical goods or goods and services used outside of the application will be rejected

11.4 - Apps that use IAP to purchase credits or other currencies must consume those credits within the application