Snapchat is a popular messaging app that allows teens to exchange user-generated photos, texts, videos, and calls - both audio and video.
The developer claims that Snaps can't be saved within the app and are only viewable for one to 10 seconds before disappearing from the recipient's device, noting that the app notifies the sender if the recipient takes a screenshot of an image.
The app has gained a reputation as a sexting app because outgoing ( and incoming) pictures, videos, and texts are not stored on devices, but many teens use it simply to exchange fun.
As of 2016, Snapchat also has video-recording glasses called Specs available for purchase which record short videos that you can send to your phone and, from there, post to Snapchat.
I will snapchat 4/5 star overall.