GetYourGuide - Get tickets to the most popular attractions while travelling
Attendize Event Ticketing - Attendize is a free & open-source ticket selling and event management platform
Klook - Discover & book amazing experiences at exclusive prices
Zoho Backstage - Plan, run, and analyze your event— all from one place
Airbnb - Book unique places to stay and things to do.
Meetup for iOS and Android - Discover groups that are all about the things you love