With a couple days to go before Valentine’s Day, Hinge, a D.C. startup, just released its Facebook-enabled dating app. And if their launch party last Thursday was any indication, it’s on its way to becoming D.C.’s new way to date. Sponsored by Washingtonian and Guest of a Guest, the party drew nearly two thousand of D.C.’s trendsetters who came to dance, drink, and, well… hinge.

Unlike dating sites where you’re limited just to seeing other people on the site, Hinge lets you surf your Facebook friends’ friends. You rate your interest in each one from 1 to 5, and if you and another person rate each other highly enough, Hinge sends an introduction. It’s a breath of fresh air compared to dating sites like okCupid with random strangers, fake profiles, and weird algorithms.

“Our philosophy is that your friends are your biggest asset when it comes to dating,” said Justin McLeod, who founded Hinge alongside his best friend and roommate from college, Bennett Richardson. “We just wanted to create an easy, fun way for people to find dates within their social circle—which are the people best for you. After all, even with the Match.coms of the world, the most common way couples meet is through friends.”

One user described the app simply as “a machine to eliminate singleness.” We don’t know if we’d take it that far, but it certainly does seem to be pretty effective. Hinge allowed over 400 people to discover a friend-a-friend match within its first 48 hours. And at the very least, it’s a fun way to kill time.

“The launch party was a huge success. We had over 1,000 registrations that night, and it’s only been growing since,” said Bennett. Hinge is available now in the App Store. Are you missing out on any of your friends’ single friends? You don’t have to wonder anymore. Check out Hinge now.