TEEN USES DATING APP FOR THE FIRST TIME!!!Is it hot in here or is it just us? Here are all the dating apps and websites you need to know about. But for those just getting into the game of swiping left and right, how do you know where to start? Launched by Russian tech entrepreneur Andrey Andreev, Badoo is the biggest dating app in the world. In traditional apps, when women match with guys, the unspoken rule is that they hesitate to initiate a conversation for fear of seeming weird or desperate. On Bumble, women have no choice in the matter. Typically, those guys are keepers.