Google has three instant messaging apps that enable you to chat to friends, relatives and work colleagues - Hangouts, Messenger and Allo. Which im app should you use and why? It is a confusing situation!

Plague – The Network is an unusual kind of social network and unlike rival services, you don’t have any friends at all. In fact, you don’t even need an account. At first sight this seems to be a very odd concept for a social network, but it is strangely addictive and quite entertaining. You will soon be hooked!