LDS Doctrinal Mastery is an Android app developed by The Church of Jesus Christ of Latter-day Saints. The app is designed to help members of the church study and learn the 100 seminary doctrinal mastery passages, the Articles of Faith, and other content imported using the sharing feature within the Gospel Library app. The app offers a variety of learning activities such as memorizing, reviewing flashcards, and taking a quiz. By memorizing the scriptures, users can find a powerful source of inspiration in times of need.

The app is free and available for Android users. The interface is user-friendly and easy to navigate. The app offers a variety of quizzes and activities to help users memorize the passages. Users can also track their progress and see how much they have memorized. The app is a great tool for members of The Church of Jesus Christ of Latter-day Saints who want to learn and memorize the scriptures.