Snapchat is a messaging app that allows users to send and receive messages. The app has a feature called " Memories." When a user sends a message, they can choose to save the message as a “Snapshot.” The next time the user logs in to Snapchat, they can see the “Snapshot” of that message. If the user wants to delete the message, they can do so by selecting it from their “Message History” and deleting it.