New apps help people avoid unwanted encounters

New apps can help people avoid bumping into others and provide escape routes if they do. By logging on to Facebook and other social networking sites, users can choose people they do not want to see. "Everybody has somebody they want to avoid," said Udi Dagan, chief executive officer of Israel-based technology company Split. The Cloak app for iOS works in a similar way through Foursquare or Instagram, sending a notification if the person comes from within half a block to 2 miles away.



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