SnapchatSnapchat lets you send messages or 'snaps' to contacts, which appear for up to 10 seconds.
YouTubeYouTube allows you to watch, create and comment on videos on a public profile.
Minecraft: Pocket EditionMinecraft is a game that lets you create a virtual world using building blocks and chat to others.
To children, online life is real life. We've joined forces with O2 to help parents explore and understand online life as kids know it.
About this guide
We worked with over 2,049 parents and carers, and 2,059 young people to review social networks and apps that children use.