Facebook has snapped up Glancee, a social discovery app that shows users when Facebook friends, friends-of-Facebook-friends and people with similar interests are nearby.

Like Instagram, the photo-sharing app Facebook is acquiring for $1 billion, Glancee promises to supplement Facebook's mobile offerings and suggests an effort by the social network to boost its smartphone experience.

Glancee uses Facebook to help users forge connections with people around them in the real world, putting the social graph to work in order to reveal that the stranger in the Starbucks line is actually your cousin's best friend, or a fellow fashionista obsessed with The Sartorialist. This ability to link people together offline -- with help from the web -- lines up nicely with Facebook's mission to make the world a more "open and connected" place.

Unlike Instagram, however, Glancee isn't bringing aboard millions of new users. According to a cached version of Glancee's iTunes App Store page, last updated in mid-April, the app boasts just 10,000 active users. AppData estimates Glancee has 3,000 daily active users.

Facebook has previously dipped its toe into connecting online friendships with our offline activities. Its now-defunct Facebook Places check-in tool allowed users to check-in to a location on Facebook, much as with Foursquare. It never quite took off, in part perhaps because the manual check-in process can be an awkward one that takes just a few seconds too long.

But Glancee may help Facebook build a more elegant solution, albeit one that could potentially give the social network more information about our whereabouts than ever before: Many social discovery apps, like Highlight and Glancee, work quietly in the background monitoring GPS data from our phones to surface potential connections automatically, without requiring a check-in.

Yet as I wrote here, the "friends" these friend-finding apps present us aren't always relevant. Given how expansive and diverse our social circles on Facebook have become, sharing a friend, or even ten, in common with another person isn't always a surefire indicator we'd want to meet. I don't even know all my Facebook friends. If Facebook plans to offer a Glancee-like service of its own, it will need to ensure it doesn't overwhelm us with "friend" suggestions.

The app looks to have been pulled from the iTunes App Store. Glancee's co-founders will be joining Facebook, according to a statement Facebook gave All Things D.

Here's what Glancee co-founders Andrea Vaccari, Alberto Tretti, and Gabriel Grise said in a post announcing the deal, the terms of which were not disclosed:

We started Glancee in 2010 with the goal of bringing together the best of your physical and digital worlds. We wanted to make it easy to discover the hidden connections around you, and to meet interesting people. Since then Glancee has connected thousands of people, empowering serendipity and pioneering social discovery. We are therefore very excited to announce that Facebook has acquired Glancee and that we have joined the team in Menlo Park to build great products for over 900 million Facebook users. We've had such a blast connecting people through Glancee, and we truly thank our users for being a part of the Glancee community.

Facebook did not immediately respond to a request for comments.

Also on HuffPost:

Check out the slideshow to see 50 techies you should subscribe to on Facebook.
Loading Slideshow...
  • Sheryl Sandberg

    Chief Operating Officer at Facebook <a href="http://www.facebook.com/sheryl" target="_hplink">http://www.facebook.com/sheryl</a>

  • Reed Hastings

    CEO of Netflix <a href="http://www.facebook.com/reed1960" target="_hplink">http://www.facebook.com/reed1960</a>

  • Kevin Systrom

    CEO of Instagram <a href="https://www.facebook.com/systrom" target="_hplink">https://www.facebook.com/systrom</a>

  • Alexia Tsotsis

    Co-Editor at TechCrunch <a href="http://www.facebook.com/alexiatsotsis" target="_hplink">http://www.facebook.com/alexiatsotsis</a> *Note: TechCrunch and Huffington Post are both part of Aol.

  • Eduardo Saverin

    Co-founder of Facebook <a href="http://www.facebook.com/saverin" target="_hplink">http://www.facebook.com/saverin</a>

  • Kevin Rose

    Sr. Product Manager at Google <a href="http://www.facebook.com/kevinrose" target="_hplink">http://www.facebook.com/kevinrose</a>

  • Randi Zuckerberg

    Founder/CEO at R to Z Media Formerly led consumer marketing at Facebook <a href="http://www.facebook.com/randi" target="_hplink">http://www.facebook.com/randi</a>

  • Pete Cashmore

    Founder/CEO of Mashable <a href="http://www.facebook.com/petecashmore" target="_hplink">http://www.facebook.com/petecashmore</a>

  • Nick Bilton

    Tech Columnist at The New York Times <a href="http://www.facebook.com/nickbilton" target="_hplink">http://www.facebook.com/nickbilton</a>

  • Sean Parker

    Director at Spotify <a href="http://www.facebook.com/Sean" target="_hplink">http://www.facebook.com/Sean</a>

  • Liz Gannes

    Senior Writer at All Things D <a href="http://www.facebook.com/LizGannes" target="_hplink">http://www.facebook.com/LizGannes</a>

  • Bret Taylor

    Chief Technology Officer at Facebook <a href="http://www.facebook.com/btaylor" target="_hplink">http://www.facebook.com/btaylor</a>

  • Steve Wozniak

    Co-founder of Apple <a href="http://www.facebook.com/stevewoz" target="_hplink">http://www.facebook.com/stevewoz</a>

  • Laurie Segall

    Tech Reporter at CNN Money <a href="http://www.facebook.com/LaurieSegall" target="_hplink">http://www.facebook.com/LaurieSegall</a>

  • Anthony De Rosa

    Social Media Editor at Reuters <a href="http://www.facebook.com/antderosa" target="_hplink">http://www.facebook.com/antderosa</a>

  • Loic Le Meur

    Founder/CEO of Seesmic <a href="http://www.facebook.com/loic" target="_hplink">http://www.facebook.com/loic</a>

  • Om Malik

    Founder and Senior Writer at GigaOm <a href="http://www.facebook.com/ommalik" target="_hplink">http://www.facebook.com/ommalik</a>

  • Jennifer Van Grove

    Writer at VentureBeat <a href="http://www.facebook.com/jbruin" target="_hplink">http://www.facebook.com/jbruin</a>

  • Blake Ross

    Director of Product at Facebook <a href="http://www.facebook.com/blake" target="_hplink">http://www.facebook.com/blake</a>

  • Michael Arrington

    Founder at TechCrunch <a href="http://www.facebook.com/theuncrunched" target="_hplink">http://www.facebook.com/theuncrunched</a> *Note: TechCrunch and Huffington Post are both part of Aol.

  • Rosa Golijan

    Senior Writer/Editor at msnbc.com <a href="http://www.facebook.com/rosa" target="_hplink">http://www.facebook.com/rosa</a>

  • Ben Parr

    Co-Founder at The Peep Project <a href="http://www.facebook.com/ben.parr" target="_hplink">http://www.facebook.com/ben.parr</a>

  • Mathew Ingram

    Senior Writer at GigaOm <a href="http://www.facebook.com/mathewingram" target="_hplink">http://www.facebook.com/mathewingram</a>

  • Walt Mossberg

    Tech Columnist at The Wall Street Journal <a href="http://www.facebook.com/WaltMossberg" target="_hplink">http://www.facebook.com/WaltMossberg</a>

  • Robert Scoble

    Tech Blogger, Startup Liaison Officer at Rackspace <a href="http://www.facebook.com/RobertScoble" target="_hplink">http://www.facebook.com/RobertScoble</a>

  • Guy Kawasaki

    Co-founder at Alltop <a href="http://www.facebook.com/guy" target="_hplink">http://www.facebook.com/guy</a>

  • Eric Eldon

    Editor at TechCrunch <a href="http://www.facebook.com/EricEldon" target="_hplink">http://www.facebook.com/EricEldon</a> *Note: TechCrunch and Huffington Post are both part of Aol.

  • Jolie O'Dell

    Writer at VentureBeat <a href="http://www.facebook.com/jolieodell" target="_hplink">http://www.facebook.com/jolieodell</a>

  • Dennis Crowley

    Founder/CEO of Foursquare <a href="http://www.facebook.com/dens" target="_hplink">http://www.facebook.com/dens</a>

  • Danny Sullivan

    Editor-In-Chief, Search Engine Land <a href="http://www.facebook.com/dannysullivan" target="_hplink">http://www.facebook.com/dannysullivan</a>

  • Kara Swisher

    Co-executive Editor at All Things Digital <a href="http://www.facebook.com/KaraSwisher" target="_hplink">http://www.facebook.com/KaraSwisher</a>

  • Leo Laporte

    Tech Podcaster/Pundit <a href="http://www.facebook.com/leoglaporte" target="_hplink">http://www.facebook.com/leoglaporte</a>

  • Alexander Howard

    Gov 2.0 Washington Correspondent at O'Reilly Media <a href="http://www.facebook.com/alexhoward" target="_hplink">http://www.facebook.com/alexhoward</a>

  • Richard MacManus

    Founder/Editor at ReadWriteWeb <a href="http://www.facebook.com/ricmac" target="_hplink">http://www.facebook.com/ricmac</a>

  • Joshua Topolsky

    Editor-in-Chief of The Verge <a href="http://www.facebook.com/joshuatopolsky" target="_hplink">http://www.facebook.com/joshuatopolsky</a>

  • Gary Vaynerchuk

    Video Blogger, Author/Speaker on Brands/Social Media <a href="http://www.facebook.com/profile.php?id=708727040" target="_hplink">http://www.facebook.com/profile.php?id=708727040</a>

  • Liz Heron

    Social Media Director at The Wall Street Journal <a href="http://www.facebook.com/lheron" target="_hplink">http://www.facebook.com/lheron</a>

  • Craig Newmark

    Founder of Craigslist <a href="http://www.facebook.com/craignewmark" target="_hplink">http://www.facebook.com/craignewmark</a>

  • Jonah Peretti

    Co-founder/CEO of Buzzfeed Co-founder of The Huffington Post <a href="http://www.facebook.com/peretti" target="_hplink">http://www.facebook.com/peretti</a>

  • Kate O'Neill

    Product Marketing at Facebook <a href="http://www.facebook.com/kkoneill" target="_hplink">http://www.facebook.com/kkoneill</a>

  • MG Siegler

    General Partner at CrunchFund <a href="http://www.facebook.com/parislemon" target="_hplink">http://www.facebook.com/parislemon</a>

  • Zee Kane

    CEO at The Next Web <a href="http://www.facebook.com/zee" target="_hplink">http://www.facebook.com/zee</a>

  • Susan Beebe

    Chief Listener at Dell <a href="http://www.facebook.com/susan.beebe" target="_hplink">http://www.facebook.com/susan.beebe</a>

  • Vadim Lavrusik

    Journalist Program Manager at Facebook <a href="http://www.facebook.com/vadim" target="_hplink">http://www.facebook.com/vadim</a>

  • Gina Trapani

    Founder at LifeHacker <a href="http://www.facebook.com/ginatrapani" target="_hplink">http://www.facebook.com/ginatrapani</a>

  • Larry Magid

    Co-director at ConnectSafely.org <a href="http://www.facebook.com/larrymagid" target="_hplink">http://www.facebook.com/larrymagid</a>

  • Matt Buchanan

    BuzzFeed Tech Editor <a href="http://www.facebook.com/mattbuchanan" target="_hplink">http://www.facebook.com/mattbuchanan</a>

  • Soraya Darabi

    Founder of Foodspotting <a href="http://www.facebook.com/sorayadarabi" target="_hplink">http://www.facebook.com/sorayadarabi</a>

  • Dave Morin

    Co-founder/CEO of Path <a href="http://www.facebook.com/dvmrn" target="_hplink">http://www.facebook.com/dvmrn</a>

  • Mark Zuckerberg

    Co-founder/CEO at Facebook <a href="http://www.facebook.com/zuck" target="_hplink">http://www.facebook.com/zuck</a>