Google's Android Pay service is now compatible with PayPal. The companies today announced that Android Pay users can opt to use their PayPal account as a source of funds when making tap-and-go payments at retail stores or on the web. PayPal via Android Pay will stand in for a debit or credit card. People will be able to link their accounts from either app. Android Pay and PayPal will gain this functionality through an update to their respective mobile apps in the coming weeks. Google recently added in-app Android Pay compatibility with several mobile banking apps. The moves are meant to help coax more people to use Google's mobile payment service.