Yelp's has cunningly added augmented reality functionality as a hidden feature in its existing iPhone app, for iPhone 3Gs users. 

The Easter egg can be unearthed by simply shaking the app a few times (actually, to the amusement of my colleagues, I shook my phone for about five minutes before it decided to work). It's only available for the newer version of the iPhone because it needs to use the compass. 

Once activated the AR function works via a new button on the top right of the screen, labelled 'Monocle'. Click it to access a camera plus overlay that features restaurants, bars and other markers. You rotate your phone to reveal the markers on the screen, to help you navigate towards them.

Although this is a first stab at AR for Yelp the app works well. A screenshot shows a marker for Yo Sushi right next to my local Yo Sushi branch. 

Yelp embeds augmented reality into iPhone app

You can also check out the video below to see how it works: 

The Yelp app is available for download from the App Store for free. 

Chris Lake

Published 8 September, 2009 by Chris Lake

Chris Lake is CEO at EmpiricalProof, and former Director of Content at Econsultancy. Follow him on Twitter, Google+ or connect via Linkedin.

582 more posts from this author

You might be interested in

Comments (1)

Graham Charlton

Graham Charlton, Editor in Chief at ClickZ Global

Very nice. Pity I'm stuck with the old 3G iPhone...

almost 9 years ago

Save or Cancel

Enjoying this article?

Get more just like this, delivered to your inbox.

Keep up to date with the latest analysis, inspiration and learning from the Econsultancy blog with our free Digital Pulse newsletter. You will receive a hand-picked digest of the latest and greatest articles, as well as snippets of new market data, best practice guides and trends research.