Instagram stories vs Snapchat stories: has Instagram broken the law? Who wins the battle of the social media giants?

Instagram has made the biggest change to its app since it started allowing non-square photos this week, introducing a stories feature which bears a striking resemblance to Snapchat's own pioneering stories feed.

Instagram Storieswas quietly introduced into the app overnight this week. For those that aren't familiar with the Snapchat feature it is a series of images or short videos (10 seconds maximum) from people you follow, which will appear at the top of the app. However, unlike your curated and well-filtered Instagram pictures, this content will disappear after twenty-four hours.