The Guardian has launched an Apple app priced at £2.39 as it looks to offer a "best in class" news service.

The Guardian is one of the first publishers to charge for a news app, which does not include ads, but its news content remains available free via its mobile internet site.

Almost half the 1m unique users of its mobile internet site, which launched in February, access the site via an iPhone or iPod Touch.

The app, developed internally along with mobile agency 2ergo, offers access to the Guardian's entire catalogue of news, as well as sections such as columnists, features, galleries, podcasts and obituaries.

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