The Nudge app allows users to lobby MPs, petition governments and share latest campaign news. It also gives the option to instantly share the issue with friends on Twitter and Facebook, where the impact is tripled.

'With the Nudge app you reach powerful decision makers in an instant, nudge all those you couldn't find before, or were slow to reply,' said Craig 

Philbrick, who created the app at Tearfund. 'Think of it as democracy in the palm of your hand.'

The app has a Facebook feature which means people can take campaign actions without needing to download the app, making it very easy to use on the move as well as outside the UK. Nudge is also available on iPhone and Android platforms.

'I imagine if Wilberforce was around today he would be using the Nudge app,' said Andy Flannagan, the songwriter and activist.

'It's social media that tackles injustice rather than help you hide from your real neighbours. Tearfund's app is a great little pocket protester.'

Tearfund says its online campaign activity has soared in the last two years with visits to the charity's website increasing from 3 to 11 per cent.

'Nudge is the latest tool to help empower more people to speak out about the things that matter in society,' adds Craig.
'We know that campaigning changes the lives of some of the poorest people around the world. The app will make a real difference in how people participate in this change.'