Double - Tinder for double dates

Meetup - Helps groups of people with shared interests plan events and facilitates off line group meetings in various localities around the world.

Hater - The dating app that matches you based on what you hate

Facebook Local - Discover places to go and events happening near you

Tinder - Tinder is how people meet. It's like real life, but better.

Eventbrite - Discover Great Events or Create Your Own & Sell Tickets