The Catholic Church has approved an iPhone app that helps guide worshippers through confession. The program - called Confession - went on sale last week through iTunes for £1.19 ($1.99). Described as "the perfect aid for every penitent", it offers users tips and guidelines to help them with the sacrament. Now senior church officials in America have given it their seal of approval, in what is thought to be a first. The app takes users through the sacrament - in which Catholics admit their wrongdoings - and allows them to keep track of their sins. It also allows them to examine their conscience based on personalised factors such as age, sex and marital status - but it is not intended to replace traditional confession entirely. Instead, it encourages users to understand their actions and then visit their priest for absolution.