http://techcrunch.com/2014/10/25/currentc/

Long before Apple Pay, big brick-and-mortar retail chains were conspiring to sidestep the typical 2% to 3% fees they’re charged by credit card companies when consumers pay with credit. A company called MCX (Merchant Customer Exchange), spearheaded by Walmart, was started to build a mobile payment solution that would become an app called CurrentC that’s preparing to launch, but is already in the app stores.