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Nothing is more disappointing than getting eyes from a cute stranger and not acting on it. Instead of sitting at your desk reminiscing about that fleeting moment in the elevator, you can finally have the answer to single life's two most important questions: 1. Were they actually into me? and 2. Will we ever meet again?

There's actually just one answer: Happn. The dating app, just launched in San Francisco, shows where you and all those cute strangers have crossed paths. Bring up your feed and their profile shows up, along with where and how many times you've been near each other. Your location isn't saved and remains completely invisible to other members (only the position you've passed each other is registered). Happn gives an opportunity to contact people you may have been destined to meet, but were too busy to notice, or too shy to approach. Tap "Like" and you'll be notified if they did the same; send a Charm if you'd like to break the ice and get noticed. Even better, you'll never receive a message from someone you didn't already like.

There are lots of reasons to celebrate the app's launch in SF—whether you're ready to finally find some real chemistry or just looking to mix up your dating game—but here are the top six.

1. No More Spending Hours Swiping Left. Instead of struggling through hundreds of profiles that have nothing to do with your interests, use Happn to find people you were destined to meet. Plus, you'll see multiple profiles at once: no more swiper's remorse.

2. It's Hyper-Local. With Happn, you can find people who aren't just in your city, they might use your BART stop, go to your Blue Bottle, or work in your building. Stop being disappointed when someone says they live "in SF" but what they really mean is "Modesto-ish."

3. It's Down to the Minute. There are a lot of gorgeous people in this city, and sometimes your days can be filled with longing glances from passersby—and the disappointment of not acting on it. Now you can make it right: passing moments are tracked right down to the minute and plotted on a handy little map, so you'll finally be able to make something of all those missed opportunities.

4. It's Real Life. Meet people based on what you really do, not the fantasies that pad your dating profiles. You might go rock climbing once a year, but you check in on what's new at Green Apple Books all the time. Now you can see who's been eyeing you from the stacks.

5. It's Not 'Missed Connections.' Besides being way more user friendly, Happn offers less bad grammar, more updates, fewer creeps, and a much more effective way of meeting that hot new commuter who must have just moved nearby.

6. It's Serious Instant Gratification. Think about it. How many times have you wondered if you got stares all day because your outfit was too much, or because you just looked that good? Now you can bring up Happn after every once-over and have the answer once and for all.

There's no shortage of people around you who've already picked it up; Happn just celebrated 1 million users at the end of last year, and this is after barely a year in existence. Since thousands of Bay Area singles are jumping on the bandwagon every week, you should give it a try and see for yourself!

Happn is available for both iPhone and Android.