Eventjoy - The Easiest Way To Organize An Event
EventsApp - A simple concise app for creating and sharing events.
Meetup for iOS and Android - Discover groups that are all about the things you love
Event Hunt - Startups and Tech Events Curated By Locals
TechEvents.co - Tech and startup events aggregator
Calendify - Calendify is an event community where you can share, publish, and subscribe to event calendars. It helps you to stay informed about what you are interested in and what is yet to come.