"By clicking on the 'Report' button, users can upload a photo and give a brief eyewitness account of breaking news," the Telegraph reported yesterday.
"This new, improved app provides a really rich, multimedia news experience," said Maani Safa, head of mobile at Telegraph Media Group. "We've made the software as easy to use as possible, and there are lots of features that readers will love."
Its first iPhone app was launched earlier this year and it has also developed a variety of apps for BlackBerry and Google Android.
The Telegraph has also launched a citizen journalism competition to coincide with the new launch: readers are encouraged to send in 'newsworthy' words or images for a chance to see their item published on Telegraph.co.uk and win iTunes vouchers.