Outguided - Feast your eyes on Outguided 2.0!
Detour - Immersive audio walks, now in 17 cities
GuruWalk - GuruWalk is a platform to connect travelers (walkers) with local free walking tour guides (gurus), democratizing access to culture and promoting local economies, present in more than 100 countries and thousands of destinations.
Hewell - Your virtual tour guide to the world
YourTour - Explore user-generated immersive audio tours via your phone
Tales & Tours - The personal tour guide that fits in your pocket