One of Snapchat’s charms is the knowledge that your photos aren’t being stored for eternity (and heaven knows what future purpose). And there’s a growing trend of communications providers offering similar anonymity.

Heml.is (above), named after the Swedish word for ‘secret’, is 'a secure messenger with a beautiful design’, allowing you to message others without the chance of anybody listening in or storing your content.

Wickr is a similar app, providing 'military-grade encryption of text, picture, audio and video messages and sender-based control over who can read messages, where and for how long’.

Will this become a mainstream offering of telcos and social media owners?