In-app purchasing is an easy and convenient way to sell extra levels, premium items and other upgrades within your app. Fortumo is the official in-app purchasing partner for NOOK Apps.
Enabling developers to charge for premium features and sell virtual credits inside their apps using mobile operator billing.
Turn-key mobile payments flow for selling virtual goods in online games, web applications and social networks.
Fortumo's mobile payments work on any Windows 8 device: in desktop or laptop browser as well as within apps; on Surface and on any other Windows 8 or Windows RT device… with just one simple integration.
Fortumo's powerful, flexible and secure SMS-connectivity / mobile payments API, open to all developers for free. Enabling to easily integrate mobile payments with any app, game or web-service.
A good place to get help from other developers: Stackoverflow
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