전국버스 is an Android app that provides bus information for many regions. With this app, users can access various features such as searching for bus routes, checking bus stop information, finding nearby stops, searching for stops on a map, and viewing real-time bus arrival information. The app supports multiple regions including Seoul, Incheon, Busan, Daejeon, Daegu, Gwangju, Ulsan, and Sejong. It also covers Gyeonggi-do, Jeju-do, and various areas in Gangwon-do, Gyeongsangnam-do, Gyeongsangbuk-do, Jeollanam-do, Jeollabuk-do, Chungcheongnam-do, and Chungcheongbuk-do.

Users can optionally allow access to their location for searching nearby bus stops, and to their storage for backing up and restoring favorite items. However, these access permissions are not mandatory to use the app. For reporting any errors, users can contact the developer at providing details such as the region, bus stop, and route names to assist in resolving the issues. 전국버스 is a comprehensive Android app for bus information that caters to a wide range of regions.