Mobile payments account for 11% of Starbucks' US sales

"Starbucks, the coffee chain with more than 28,000 locations worldwide, said its mobile order and pay service grew to 11% of transactions in U.S. company-operated stores in Q1 2018 from 10% in the prior quarter. The Starbucks Rewards loyalty program helped to drive mobile growth with an 11% membership gain to 14.2 million from the prior year. Member spending made up 37% of U.S. sales.
The company, which now has the ability to offer mobile order and pay to customers who don’t belong to its loyalty program, plans to ramp up the service to all customers in March, company president and CEO Kevin Johnson said in a conference call with investors. The growing popularity of mobile payment is leading the company to test cashless stores in the U.S."

Source:  Mobile Marketer, 29th Jan 2018

Starbucks' loyaltry programme has 13.2m members in the US

"Mobile payments accounted for 30 percent of transactions in U.S. stores during the company’s third quarter, which was up from 29 percent in the previous quarter and 27 percent in Q1.
Starbucks’ Rewards program grew by 11 percent from last year; there are now 13.3 million active members in the U.S. that account for 36 percent of U.S. company-operated store sales. However, membership has remained stagnant at 13.3 million since April, when Starbucks reported its Q2 earnings. That’s also when Starbucks tweaked the program to reward customers based on money they spend rather than how often they visit."

Source:  GeekWire, 2nd November 2017