Manga Box (マンガボックス) is a manga magazine mobile app developed by DeNA. It was launched on December 4, 2013 as free app for iOS and Android devices and as a website platform. The app hosts manga by Kodansha, Shogakukan, and other manga publishers. Mangaka Shin Kibayashi serves as editor-in-chief of the app and pens several of the app's titles under his numerous pseudonyms. In addition to the original manga series run on Manga Box, several of the titles on the app are based on existing works, including Ghost in the Shell, Kindaichi Case Files, Attack on Titan, The Knight in the Area, Space Dandy, Fatal Frame, and Ultraman.
The app is available in Japanese, English, and Chinese in 140 countries and regions around the world. Issues are posted on a weekly basis with the twelve most recent issues being accessible to users for free. Additionally, users can read the first 100 pages of a title in the Digest section of the app. Most titles are serialized weekly, on any given day of the week, though some appear bi-monthly or irregularly. The app displays a schedule of series per issue and what day the next chapters will be released. Users can read chapters before their scheduled release by sharing messages to Facebook or Twitter. Users can also choose series to subscribe to and receive notifications for when a new chapter of the series is released.. There is no uniform standard number of pages per chapter either, with individual series having their own standard ranging from 10 pages to 20+. The app also uses censor bars for excessive gore and nudity. The website platform is more limited than the app counterpart; only a series' latest chapter or 'Digest' can be read.