Detour - Immersive audio walks, now in 17 cities
TripScout - Self-guided city tours from local experts
Tripadvisor - The Tripadvisor mobile app is available for the Android and iOS platforms. It can be used to create reviews of hotels, restaurants, and to chat with other travelers on Tripadvisor forums.
Tales & Tours - The personal tour guide that fits in your pocket
Blink by Groupon - The leading app for last-minute hotel reservations. Always cheaper than the Best Online Rate.
YourTour - Explore user-generated immersive audio tours via your phone