Fortumo, mobile payments provider in Europe, Asia and US has revamped it’s in-app payments library for Android, now supporting offline payments.

Unlike all other major in-app payments solutions for Android (as well as Apple’s App Store) that require the user to have an active data connection while making a purchase, Fortumo’s solution can also be used when there is no data access.

Fortumo pulls this off by relying on carrier billing and falling back to SMS text messaging when there is no data connection. Application sends a text message to a short code. Payment is verified when the application gets back a confirmation text message. Users initiate a payment with a single click, without leaving the application.

Fortumo’s in-app payments is powering Rovio’s Angry Birds “Bad Piggy Bank”, which was announced last week, letting users either remove the ad on the free version of the game or buy the Mighty Eagle update.

The same in-app payments library that Angry Birds is using is now available for all Android develpers for free. Developers can download the library and integrate it with their app at http://fortumo.com/in-app-payments .

Fortumo has billing coverage in 50 countries and about 200 mobile operators. There are no startup fees, monthly fees or minimum volume commitments, making it suitable for small and large developers alike.

Fortumo Ltd, founded in 2007 with offices in Europe (Tartu, Estonia) and US (Sunnyvale, California) has gained over 49 000 registered service providers who have created over 156 000 mobile payments services since 2007.  Fortumo is available at http://fortumo.com