In 'Nearby' mode, instead of sending messages using a mobile or data signal, the feature lets users send messages to people in close proximity that are in Bluetooth or Wi-Fi Direct range - up to around 30 feet (9 metres).

Just as with Skype and many other tools that use Vo IP technology for communication, Google has its tool for making voice and video calls.

It is Hangouts, which replaced Google Talk and is now the Google communication tool.

Because your photos and videos disappear after someone sees it, you can do all sorts of stuff on it, without having to worry about being embarrassed by it. I think it’s safe to say that Snapchat makes you truly be yourself, truly express yourself.

Snapchat Lenses are specifically developed to create face effects.

It was an added cruelty that Katie’s world had revolved around her beauty.

She modelled for catalogues and magazines, presented television programmes and had dreamed of a full-time career in the media.

However much she would like to forget them, the details of how she lost her dreams, her identity and very nearly her life will stay with Katie Piper for ever. Katie, 26, has remained fearful and anonymous in the 18 months since the man she met on the internet attempted to destroy her, so few will recognise her name.

But the facts of the case – the rape, the vengeful boyfriend Daniel Lynch, the cup of industrial-strength sulphuric acid – are all too familiar, a cause of anger and revulsion when they were revealed in court earlier this year.

To be able to make voice or video calls, you need the following: In Hangouts or Gmail, text chatting is the default.