Snapchat is a popular app among teenagers nowadays as they are only the main users of this Snapchat app. This app is used to take videos, photos, text and then share it with your friends. One unique feature of this app is that it allows users to take decision about how much duration of content can be viewed by a receiver and it’s time ranges from 1 sec to 10 sec. once the  receiver starts watching the video or photo, it will automatically get over in the fixed time which is set by the sender. This app is great to share funny photos, video for limited time.