The expanded functionality for the popular travel app comes just as the summer travel season kicks off. is seeking to drive traffic to the app and to its Web site with a suggested itinerary of three “road trips” for summer travelers. “We have added some new features to the app that make it easier for trip planning,” said Taylor L. Cole, a Dallas-based spokeswoman for also carefully tracked how its mobile app users were navigating the app, and also how they were using the desktop version of the site. Customers were interested in both reading and posting reviews, for example. In the app, there are now two tabs that allow users to toggle back and forth between reviews posted on TripAdvisor and those posted on Get the full story at the Mobile Marketer