Barnes & Noble expanded the Free Fridays content programme for its Android-powered NOOK tablets to include apps.

The weekly offer allows NOOK users to download paid content without charge, and will now include a different NOOK app each week.

The first app to be offered for free was OfficeSuite Professional 7 from Mobisystems, which normally costs $14.99 to download. The apps allows users to create, view, edit and print Microsoft Word, Excel and PowerPoint files, as well as view PDF documents.

NOOK users can find and download the books and apps included in Free Fridays by visiting the NOOK blog, Facebook page or by following NOOK on Twitter. Users can also find the content in the NOOK Store.