Whitney Wolfe Herd, 31, became the world’s youngest self-made female billionaire when she took Bumble public in February. The central focus of dating app Bumble is that only women can initiate a conversation in heterosexual matches. Wolfe Herd owns a 11.6% stake in Bumble, giving her an estimated net worth of $1.3 billion. She also heads Badoo. The two apps have a combined 40 million users, 2.4 million of whom pay a subscription, reports the BBC. Wolfe Herd is one of 328 women who made Forbes’ 2021 list of the world’s billionaires, up from 241 women last year.