Postbank employees participating in the project will be able to use their Android smartphones at the checkout to make contactless payments with a tap of their phone at the cash register.

The technology, supplied by Worldline, includes the use of digital tokens and one-time keys to protect customer card data.

Wolf Kunisch, managing director for financial processing & software licensing at Worldline says: "The total market share of Android systems is approximately 82 percent of the smartphone market. With Worldline NFC Mobile Payments we offer banks a payment function they can provide their customers, with no need for a hardware Secure Element partner.”