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.

inviita - inviita is a free app that instantly creates tours that match your mood, in any city in the world.

Wikivoyage - the free worldwide travel guide that anyone can edit.

Blink by Groupon - The leading app for last-minute hotel reservations. Always cheaper than the Best Online Rate.

Triptipedia - Triptipedia is a free collaborative encyclopedia of travel tips, where everyone can browse, save and share tips for better travel!

Headout - Explore and book the top attractions, sightseeing tours, events and things to do in your city. Get exclusive discounts and priority access with Headout.