A new app, billed as the "Tinder of Real Estate", is allowing homebuyers in the UK to shop for a new home the same way they shop for new partners: by swiping. It's called Knocker and was recently created by a pair of programmers at the Ignite100 accelerator in Newcastle. The app runs atop the British property website Zoopla, allowing users to easily browse the site's enormous database of available homes. And, like Tinder, potential matches are served up based on the user's location. Swiping left cycles through nearby properties while swiping right contacts the listing agent to arrange a viewing. The app is currently free for iOS users, though there's no word yet on when (or whether) it will be coming to Android.