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.
Hivemapper - Build maps that reveal changes 🌏
NetBuddy - Netbuddy is a virtual network operator for a mobile device.
Google NightWalk - An audio Streetview tour around Marseille
Wikivoyage - the free worldwide travel guide that anyone can edit.
Urban Jungle Street View - Explore the world through Google Street View: Jungle Mode