Snapchat offers 2 basic functions. Messages can be send privately to friends or make up stories. Then again, these are visible to everyone and a whole day long.
The private chatWith Snapchat, you can privately chat with others. To do this, to send an image instead of a text to his friends. In the image, you can paint something, write or install Emoji. As this also works with short videos. To send a picture or video, then the receiver has 10 seconds to look at the message maximum. How long exactly, decides the transmitter. Between 1 and 10 seconds are available. Then the message is gone. Disappeared. Deleted.
Of course, the receiver can create a screenshot with its Smartphone to permanently keep the image. Only, the sender receives a message. Intended as a warning, it can be used but also playful.
For some time, users can also classic texts back and forth. But images to communicate the unique feature of Snapchat is quite clear.