Final answer:
Starbucks allows customers to pay with their mobile devices by creating an account, transferring money, and using the Starbucks app to generate a bar code or QR code for payment.
Step-by-step explanation:
True. Starbucks allows customers to pay with their mobile devices by creating an account and transferring money to a pre-paid account as part of their loyalty program. At checkout, customers can activate the Starbucks app, which generates a bar code or QR code that can be scanned to complete the payment.