After more than a decade shaping modern romance, Justin McLeod is leaving Hinge behind to launch his next venture: Another dating app, with an AI twist, called Overtone.

Today, Hinge has more than 30 million users, with a date being set up every two seconds. But in 2011, when it launched, McLeod was just a young Harvard Business School student when he came up with the idea for the app “designed to be deleted.” And the fresh-faced, 20-something entrepreneur was so desperate for people to sign up to his app that he even bribed them with chocolate.

At the time, online dating largely took place on desktops and required real effort. The idea of swiping to find the love of your life (or a one-night stand) on your mobile phone seemed alien.

So convincing fellow students (who had no shortage of

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