For Starbucks baristas, there was always one reason to resent ringing up a customer with with a Starbucks app or credit card: they couldn't add a tip.

This etiquette tip, in particular, however, has to do with orders made via the Starbucks mobile app. Starbucks baristas have a bone to pick with those of you who have been using the app to place ...

NEW YORK (AP) - Want to leave your barista a tip? Starbucks is making an app for that. The Seattle-based coffee company says a digital tip function will be added to its mobile payment application ...

First, you’ll need to download the Starbucks app. If you have an iPhone, open the blue “App Store” icon on your screen. For Android phones, look for the “Google Play Store” with its ...