Wal-Mart Stores, Inc. (NYSE: WMT) revealed that it launched Walmart Pay in Alabama knowing customers, who want to save not just money, but also time. As a result, customers in Alabama are among the first to use the checkout-changing service as it's available in each of the more than 120 Walmart stores in the state.

Wal-Mart said that built with the goal of improving how customers check out and dramatically expanding mobile payment access, the company's Walmart Pay is like no other mobile payments solution available currently.

As a result of the latest unveiling, the world's biggest retailer has become the only retailer to offer its own payment solution that works with any iOS or Android device, at any checkout lane, and with any major credit, debit, pre-paid or Walmart gift card – all through the Walmart mobile app.

The company claimed that over 20 million customers actively use the Walmart app each month and it ranked among the top three retail apps in the Google and Apple app stores.