Lagu Wajib Nasional & Lirik is an Android application designed to educate children, teenagers, and adults about the national anthem and songs of the Indonesian nation. This free app offers a variety of mandatory national songs that can be played without an internet connection, complete with lyrics and a feature to record your own voice while singing along.

In addition to the recording feature, the app also includes a playback function, making it a fun tool for learning to sing in groups or studying choral anthems. The app is easy to use, with an interface that is accessible to anyone. The first edition of the app is expected to be beneficial for students, teachers, and anyone looking to learn the national songs of Indonesia.

The app features a variety of mandatory national songs, including Indonesia Raya, Bagimu Negeri, Tanah Airku, and Satu Nusa Satu Bangsa, among others. The app does not require an internet connection and offers the lyrics to each song, making it easy to follow along. The recording and playback features also add to the app's educational value.