A new quiz app’s R-rated categories are capturing teens’ attention. FriendO is rising through the ranks of the app store, but not by following the Play Nice, PG strategy that took tbh viral. FriendO users move up their friends’ rankings boards as they answer questions about each other, proving their friendship. If someone sends the app to three friends, they unlock NSFW categories like MSFK (Marry, Sex, Friend, Kill). But people are worried that none of these categories are barred to young users. (Mashable)
