Tinder boss Elie Seidman: 'If you behave badly, we want you out'

Swipe right for "would like to meet", left for "wouldn't". Seven years after Tinder made choosing a date as simple as flicking your thumb across a smartphone screen, it is by far the most-used dating app in the UK and the US. Downloaded 300m times and with more than 5 million paying subscribers, it is the highest-grossing app of any kind in the world, according to the analysts App Annie. For Americans, apps and online dating are the most common way to meet a partner. "It's an amazing responsibility, and an amazing privilege," says Elie Seidman, Tinder's 45-year-old chief executive.