Most Helpful Guy
Snapchat is an app for mobile devices in which the user can send pictures, or short videos to each-other. Once the picture/video has been viewed by the person it cannot be seen again. Unless, you do a replay which you can do once per day.
You have 'stories' in which you can take pictures/videos, apply text and emojis. These are then posted to your story in which all of the people you have added can see it. You can watch it over and over, once 24 has past from when it posted it goes. It is free, but does require an internet connection.2
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