Just when you think you have a handle on what social media apps your tweens and teens are into, a whole crop of shiny new ones take their place — many of which are both creepy and not as private as our kids might think. There’s the secret-sharing platform known as “Whisper," the video-chat-with-strangers portal called “Monkey — have fun chats,” and the dating app, “Yubo,” which has been dubbed “Tinder for teens.” There are plenty more, with detailed descriptions of how they work, below. MORE