If you have tweens or teens, you know about Snapchat. And if you can’t figure out how it works, you’re probably over 25. One of the most popular social media apps out there, Snapchat gives kids and teens what they really want: a simple way to share everyday moments while simultaneously making them look awesome. And unlike Facebook and Twitter, which record and broadcast everything you do, Snapchat uses messages that are meant to disappear (learn more about how they actually don’t). Like so many social media apps, Snapchat is a mixed bag, so it’s a good idea to understand how it works, how your kids use it and how much time they spend on it so you can make sure their experiences are positive.