We all want simpler exchanges of information when meeting new people in person. Yet even in the smartphone era, the humble business card arguably remains the best way. But Knock Knock, a new app launching today, seeks to change that by evoking the physical action of knocking on someone's door and letting you the user control how much of yourself you let through.
That’s because Knock Knock lets you commit to sharing information with someone new in discrete pieces, rather than giving them a complete contact card with basically every bit of your personal information. The app works by playing on the old association of its namesake: one person opens the app on their phone, while anyone else with the app nearby can simply knock twice on the screens of their own phones to join a group chat, or to wirelessly send one another individual pieces of their contact information.