Snapchat is a video/photo-sharing app that has become nearly ubiquitous with young people due to a couple of unique features. One, the shared content automatically disappears after a set time. A shared Snap (a single image or video) goes away after being viewed by the recipient, while a Story (a collection of images or videos) disappears after 24 hours. Second, it allows users to add cartoon images to the content, such as the bunny noses that you see reposted on Facebook. It also has filters for changing the color and other aspects of shared images, captioning, and texting options.