Unlike Apple Pay, which uses wireless NFC technology, Walmart Pay takes its cue from the CurrentC playbook, using QR codes that you scan at checkout with the iPhone’s camera. Walmart Pay, in beta since December 2015, is now available throughout all 4600+ stores in the United States via the free Walmart app for the iPhone. The Walmart-led MCX consortium and its Apple Pay competitor CurrentC may be dead in the water (see “ CurrentC Out of Juice,” ), but the retail behemoth hasn’t abandoned the dream of running its own mobile payment system.
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