EXO Lyrics is an unofficial fan-made app that allows you to easily access the lyrics of your favorite songs. It is compatible with both Android and iOS devices and offers an easy-to-use interface. You can search by title or artist and is also compatible with most popular K-pop artists.

The app is designed to be used offline, so you don't need to worry about data charges. It also supports both Roman and Korean languages. It is the most complete lyrics app that is also compatible with most music players. You can also add songs to your favorites list for quick access.