A free app for Android, by RCI Studio.

BTS Song Offline is a K-pop application that has a large collection of BTS songs that you can play in the background of your Android device without having to connect to the Internet or download any additional data. The application is designed to be played in the background and to keep the battery consumption down, so it does not affect the performance of the phone.

The application has a very simple interface that does not take up much space on the screen, so it is very easy to navigate and use. The songs can be selected by the song or the artist name, and the playlist can be selected by the playlist or the album name.