Rutter - One API for every Ecommerce platform
Alkarta - Find happenings in your city.
Event Finda - Find events near you, and all around the world.
Party with a Local - Party with a Local is a free app that connects travelers with locals that want to party.
Find Near Me - The easiest way to find everything around you (Apple Watch)
Rally by Eventbrite - Find the best local events and rally your friends to join