Among the many cravings your smartphone can satisfy, add fat, sugar and caffeine to the list.

Dunkin’ Donuts’ new mobile payment app released today lets you set up an account and pay by scanning an on-screen barcode at the checkout counter. As with Starbucks’ popular mobile app, the system works like a glorified gift card. You can add money to your account by feeding the app your credit card information, and in the case of the Dunkin’ Donuts app you can send gift cards to friends. The Starbucks app tracks your purchases and rewards frequent buyers with free drinks.

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