Facebook releases a Snapchat-like app that’s only for high schoolers

Facebook has tried and failed and tried again to win over teenagers the way Snapchat has. Now, the social network is taking a new tactic in its bid to appeal to high schoolers. Yes, it's (yet another) standalone app. This one is different than Poke and Slingshot and all the rest in one important way: it was created by a teenager.  At 19, Michael Sayman may be the youngest product managers on staff at Facebook. Despite being only two years out of high school, however, he's already a veteran