Starbucks "shakes" up its Android app with new tipping feature

Starbucks has updated its Android app for coffee drinkers in the U.S., U.K., and Canada, adding a feature to let patrons add a tip to their baristas. Now, when you use the Starbucks app to pay for your drink, you can also add a tip amount with the payment so you don't need to tip with cash.

In addition to digital tipping, users can also now shake their phones to pay for their drinks.

All the standard Starbucks features are still present, including tracking of rewards, checking and reloading gift card balances, and finding stores and directions.

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