Detour - Immersive audio walks, now in 17 cities
Foursquare City Guide - Foursquare City Guide is a Free to use mobile application that will lead you to the perfect spot anytime anywhere around the world.
Tales & Tours - The personal tour guide that fits in your pocket
Sygic Maps - The world's first online maps designed for travelers
Scenehunt - Search, share and explore Film and TV shooting locations
Flamyngo - Create a city guide with help of your friends.