Does not respond

I just downloaded the app and it doesnt work on iPhone 5s running iOS 9.2.1. I can find my flight which is on a 777 with 2 versions of the jet, but the version selection button does not work. The seat map for the 777 version 1 is shown, but clicking on seats does not work either! Dont bother until they update and fix. Is anyone at Tripadvisor paying attention? Yoo-hoo earth to developers!!

Webhoncho about SeatGuru