From the NY Times post:
A guide to what parents will (or should) be anxiously monitoring during this busy back-to-school season:
Video-Messaging Apps – Marco Polo, House Party and FireChat
Yellow – which has been called “Tinder for teens” (swipe right if you want to become friends with someone; swipe left if you don’t)
Anonymous Apps – After School, Sarahah, SayAt.Me, Monkey and Ask.Fm
Ephemeral Apps – Many adults have heard of Snapchat and Instagram Stories, but what about Live.ly, a rising live-streaming app with a large teenage audience?