Snapchat is really scary actually. You don't even have to take a screenshot (which notifies people that you have done this). There is actually a way to go into the app through the files on a phone and pull up every single one that has been received. Totally defies the point of this pointless app.
@GrizzlySapien Haha, you're so funny. Ig = Instagram. Snapchat is where you snap a photo with your phone & send it a friend, but it only appears on their phone for a short time. Personally, I think it's stupid because I could always take a screen shot of my phone & keep the photo. Vine is an app where you share short videos. There are a lot of people who have become somewhat celebrities on these apps. Thousands or even millions of followers. I don't know if they make money on there, but you can definitely make a good deal of money on youtube.
But really, you're not missing anything with Snapchat or Vine!