Milofy - Socialize with other like-minded couples
Event Hunt - Startups and Tech Events Curated By Locals
Text Event Pics - Text a number to store and share photos together
TechEvents.co - Tech and startup events aggregator
Party with a Local - Party with a Local is a free app that connects travelers with locals that want to party.
Meetup - Helps groups of people with shared interests plan events and facilitates off line group meetings in various localities around the world.