Knock Knock: A clever contact-sharing and chat app that will have you tapping your phone Video Description

The knocking gesture, which can be made even when the phone screen is off and the app isn’t active, will initiate an instant Bluetooth connection to pair you up with other app users in the vicinity. You can then choose exactly what contact information you share with each person – be it your phone number, email address, Snapchat ID or the like.

Videos for 8/19/2015