The teenage market for apps is a tough nut to crack and stay relevant in. Just ask Snapchat. Equally, teens are going through a stage in life where almost every social interaction seems to carry portent of some kind of other. This would explain in part why apps like SendIt, NGL, and Nocapp (some are Snapchat connected tools) took off as ways for teens to anonymously comment on each other. And AskFM would probably like us all to forget the various suicides that occurred when it was released in its initial form, back in the day. (And you thought Instagram is bad for mental health…).