Detour - Immersive audio walks, now in 17 cities

Tripcast - A living travel journal for your friends back home.

Guides by Lonely Planet - Explore city guides curated by experts.

Journyal - Journyal helps you to automatically record your travels, be it backpacking trips, hikes, overseas travel, or even food trails. Simply press start and take photos as you would along the way, and Journyal will help you keep track of everything.

Flamyngo - Create a city guide with help of your friends.

Firef.ly - An app that's your local guide and intimate travel journal.