Switzerland-based software licensing solution company Lotaris announced today it has partnered with mobile payments company Fortumo for carrier billing on Windows 8 and Windows Phones.

Carrier billing by Fortumo will enable developers using Lotaris' in-app Commerce solution to charge end-users in 80 countries for both traditional applications and apps in the Windows Store and Windows Phone Store by charging purchases to their phone bill.

"Mobile payments give consumers an alternate payment method to credit cards, which can greatly benefit Windows 8 and Windows Phone 8 users and developers," said John Richards, senior director of Windows App Marketing for Microsoft Corp. "We are happy to see companies like Lotaris and Fortumo working together to create attractive financial opportunities for developers and seamless purchasing experiences for users on Windows 8 and Windows Phone 8."

Lotaris will integrate Fortumo's mobile payments SDK for Windows 8 and Windows Phone 8 into its in-appCommerce solution, making carrier billing available for developers at the end of July.

"Our combined solution allows content developers — from the smallest 'indie' to the largest global players — the ability to offer their users the broadest range of business models smoothly integrated with every major payment option, including the widest coverage of mobile operator payment in the world," said Miika Kettunen, GM of Lotaris Europe and head of product development.

"Mobile payments give developers access to end users who would otherwise not be able to pay for premium apps, features and in-app purchases — growing the potential user base tenfold," said Martin Koppel, COO of Fortumo. "Combining Lotaris' flexible application licensing with carrier billing will bring exciting new monetization opportunities to developers on Windows platforms and beyond."

Learn more about direct carrier billing.