Detour - Immersive audio walks, now in 17 cities
QuizClash - In QuizClash, you can challenge your friends or random opponents to a game of trivia.
Sygic Travel Maps - Itinerary planner for independent travelers
Trivia Crack - Produced by Etermax, Trivia Crack lets players answer trivia questions and compete against other people on mobile devices.
Foursquare 10 - Your ultimate city guide, in your pocket
Trivia.Town - In Trivia.Town you battle online with trivia lovers from all over the world.