Meetup - Helps groups of people with shared interests plan events and facilitates off line group meetings in various localities around the world.
Skyscanner - Skyscanner.com compares over 1000 airlines to find you the cheapest airfares, fast.
Partle - Revolutionizing the way people get together
Kiwi.com - Find and book the best low-cost flights all around the world
Velcome - Get Price quotations for tour activities in Zanzibar delivered to your inbox in minutes
App in the Air - The perfect companion for everyone taking a flight.