Johnson Publishing Company announced last week that Jet magazine, founded in 1951, will transition to a digital magazine app at the end of June. Jet is the number three magazine in the African-American market, with a rate base of 700,000. The new weekly digital magazine app will include video interviews, enhanced digital maps, 3D charts and photography from the Jet archives. The app will be available on all tablet devices and mobile platforms. Kyra Kyles, formerly a senior editor of Jet magazine and digital managing editor of JETmag.com, has been appointed the digital editorial director for Jet online.