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.
journi - Travel Blogging Rediscovered
Wikivoyage - the free worldwide travel guide that anyone can edit.
Momatu - Momatu – Moments that matter app features sharing of family photos and videos, so users can give access to the album to all their family members by uploading them on the map and providing access to their family members.
Triptipedia - Triptipedia is a free collaborative encyclopedia of travel tips, where everyone can browse, save and share tips for better travel!
Polarsteps - Automatically track your journeys on a stunning map