Comic Relief has launched its first digital Swear Jar in the form of a voice recognition mobile app with the help of a host of celebrities including Renee Zellweger, Catherine Tate and Colin Firth.
The app, created by Grey London, uses Google's latest technology to recognise when a person or group swears. To find out, the user simply donates to Comic Relief through the app and is given a session in which it will tally the profanity of the group and publish it to the 'wall of shame' to compare against other users.
Launching today on social media, Comic Relief is revealing the app with a 45-second ad featuring some of Britain's TV and film classics including Dad's Army, The King's Speech, Little Britain and Bridget Jones's Diary's most potty mouthed moments.
With 42 swear words noted in the app, users can be as creatively foul-mouthed as they wish while donating 20p for each filthy word, with a donations cap in case someone is having a particularly bad day.
This isn't the first digital project created for the fundraising day; TK Maxx and Homesense have also partnered to create the 'Lolgorithm' as part of the 'Make Your Laugh Matter' initiative, as well as selling t-shirts designed by Rankin with all profit going to the cause.