Snapchat are set to completely revamp how the social networking app works with 'Memories'. 

The new feature, which is set to become available in August, allows users to easily save snaps or even whole stories for future use. 

You can then browse back through past snaps whenever you like or even add old snaps to new stories or creations. If you post a snap in a story that is more than a day old then it will appear in the story with a frame around it so that your followers will know that it's from the past. 

As the video below highlights, you can also mark certain pictures as 'for your eyes only' meaning that you can still maintain some level of privacy on the app.

The video below, which was shared in a recent blog post from Snapchat gives a good overview as to what 'Memories' is all about.