According to the website, the debate is that Apple does not currently allow apps to do what you are describing. A few quotes from the timeline: > Apple now pr

According to the website, the debate is that Apple does not currently allow apps to do what you are describing. A few quotes from the timeline: > Apple now prohibits buttons or links to any other external ways to pay. > While we haven’t been able to include any buttons or external links to pages containing product info, discounts, promotions, etc. (even if they don’t link directly to a payment system!) since Feb. 2011