Beginning today in select stores, Walmart Pay is available in the retailer’s mobile application – which currently boasts more than 22 million monthly users – and usable across numerous ...

attention has turned to its mobile wallet, Walmart Pay, which brought the retailer up a notch in the mcommerce space but lacks a strong loyalty component, a must-have for any retailer-driven wallet.

Wal-Mart and Apple are in a bit of a tussle over Apple Pay, Apple's mobile payment system on the iPhone 6. Wal-Mart is a leader of MCX, a group of merchants working on their own mobile payment system.