McCartney's iPad apps feature some of the musician's most popular albums -- Band on the Run, McCartney, McCartney II, RAM and Wings over America. Each iPad app contains premium content such as remastered audio tracks, archival video footage, interviews, photos and more. They are priced at $7.99, which makes them attractive to music fans who may prefer the discounted iPad apps over the more expensive music-only album versions.
McCartney may be the most long-standing successful musicians to adopt the iPad, but Björk holds the title as one of the first musicians to effectively promote an album using Apple's iOS ecosystem. Björk made headlines in 2011 for her groundbreaking Biophilia iPad app that merged music from the album with mini-games and interactive art tools. The title was recently inducted as the first app in New York's Museum of Modern Art permanent collection. The app also has been used to develop the Biophilia Educational Programme, which is being used as curriculum in several European schools.