Almost one in five US consumers (18%) have used a mobile device to make either an in-store or online purchase, up from 16% in 2014 and 12% in 2013, research from Synchrony Financial reveals, based on nearly 7,000 Synchrony Bank cardholders and shoppers nationwide. “Value propositions, including free shipping, loyalty programs and personalised offers, continue to be important,” the company adds.

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