Google Play, also branded as the Google Play Store and formerly Android Market, is a digital distribution service operated and developed by Google. It serves as the official app store for certified devices running on the Android operating system and its derivatives as well as ChromeOS, allowing users to browse and download applications developed with the Android software development kit (SDK) and published through Google. Google Play has also served as a digital media store, offering games, music, books, movies, and television programs be. Content that has been purchased on Google Play Movies & TV and Google Play Books can be accessed on a web browser, and through the Android and iOS apps.