inviita - inviita is a free app that instantly creates tours that match your mood, in any city in the world.
GetYourGuide - Get tickets to the most popular attractions while travelling
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.
Klook - Discover & book amazing experiences at exclusive prices
Blink by Groupon - The leading app for last-minute hotel reservations. Always cheaper than the Best Online Rate.
Airbnb - Book unique places to stay and things to do.