Walmart Pay, a new feature of the existing Walmart mobile application that is used 22 million times monthly, is expected to complete a national rollout in the first half of 2016. Users will be able to add general purpose credit, debit, and prepaid cards as well as private label Walmart cards to Walmart Pay. All card credentials are stored remotely. The application is flexible enough for cardholders to use one product as their default payment card or have the app deduct charges from up to five prepaid card balances before accessing that default card. In addition, shoppers could choose to split ...