京葉線プラス, developed by East Japan Railway Company, is a lifestyle app designed for iPhone users. This free app provides users with information about the Keiyo Line, a Bay Area line that connects Tokyo Station to Soga Station, as well as the latest updates on various top sports teams known as "KEIYO TEAM6" that are based along the line.

The app aims to add excitement to daily life and activities along the Keiyo Line. It offers a range of features to make living, playing, and shopping along the line more enjoyable and convenient. Users can explore the content filled with tips to enhance their Bay Area lifestyle, such as the "Keiyo Bayside Style" that introduces the attractive scenery and lifestyle unique to the line, and the "Town Explorer Concierge" that provides information tailored to users' preferences.

Additionally, the app allows users to access information about the six sports teams of KEIYO TEAM6, including their basic information, ways to watch their games, schedules, and social media updates. Through collaboration between KEIYO TEAM6 and JR East Japan, the app aims to contribute to the development of an attractive community along the Keiyo Line through sports and create teams that are loved by the local residents.

Please note that the app requires iOS version 13.0 or above and is limited to use within Japan only. It is important to refer to the user manual for specific device instructions as the app's functionality may vary depending on the device model. The unauthorized use of images and sound data used in the app is strictly prohibited. Furthermore, the app hosts its own events and campaigns independently and is not affiliated with Apple Inc. or Apple Japan.