Here are the links to 4 apps parents should know about.
Snapchat– Image and video sending app which disappears after it is viewed. There are ways around that with taking screen grabs and using other apps to capture the images.
Tinder– This is a dating app meant for adults. You can view others as they can view you and sets up conversations which could lead to meeting in-person.
Vine– An app that lets you shoot six second videos and share them on social networks.
Whisper– A secret and rumor sharing app based on geography. People can post anonymously