Carte de Cântări a Oastei Domnului is an Android application designed by Edward Dumitriu for the Education & Reference category. This app is an excellent resource for those looking for a comprehensive collection of hymns and poems of Oastea Domnului. The app is equipped with five books: Cântări, Alte Cântări, Carte de colinde, Cântări salvate, and Poezii (a part of Fr. Traian Dorz's work).

The app is connected to a real-time database that provides users with all the updates and modifications related to the content of each book. The app can be used both online and offline, making it a convenient resource for users to access their favorite hymns and poems anytime, anywhere.