TapTarget is a mobile marketing automation platform that allows companies to engage with customers after they have left their computer by integrating with a company's mobile app. It works by capturing user activity and location data from within a mobile app to build user profiles. Companies can then send personalized messages to users based on their interests and location to re-engage them in the physical world. For example, an automotive company could send push notifications to a user near a dealership to invite them to visit the showroom. TapTarget provides features like geofencing, user segmentation, and analytics to help companies create targeted mobile marketing campaigns.