S2B알리미 is a mobile push notification service designed to provide users with diverse information about the S2B service. Its main objective is to increase user satisfaction by providing a wide range of notification messages.

This app offers various features, including a list and detailed information about different notification messages, message searching, message provision and detailed receipt setting function by category, and etiquette time setting function. The app requires crucial access permission to receive push notification messages.

It is important to note that Android operating systems from version 6.0 have significantly changed their agreement method. Users are advised to check whether their smartphone's operating system can be upgraded to Android 6.0 or higher using their software update function. If the operating system is upgraded, the previously agreed access permission in the app will not change. Therefore, users must uninstall and reinstall the app to reset the access permission.