There's concerns that Snapchat is being used for cyber bullying and 'sexting'.
A recent survey by Bully4u, an anti bullying service for schools, shows that 80 per cent of 13 year olds and 90 per cent of 15 year olds are using the app.
It allows users to send a picture or video that disappears in seconds but the receiver can also take a screen grab which saves the snap.
Bully4u is warning of the dangers of 'sexting' underage, as it could be seen as the manufacturing and distribution of child porn.
