Skyscanner - Skyscanner.com compares over 1000 airlines to find you the cheapest airfares, fast.
Trainman - Find trains and predict availability OR know confirmation chances of your pnr.
Kiwi.com - Find and book the best low-cost flights all around the world
Travel Booking Agent - Your own travel agency
App in the Air - The perfect companion for everyone taking a flight.
GETRIDE - Sport and extreme travel company