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.

Party with a Local - Party with a Local is a free app that connects travelers with locals that want to party.

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

Flyreel - Live video chat with local home pros for help, advice or bids on home projects in minutes!

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

ViaHero - Don't plan your trip yourself, let a Hero come to the rescue