"Православная Библиотека" offers a comprehensive collection of Orthodox Christian literature from the 1st to the 20th century. It includes works from renowned Saints, Church Teachers, ascetics, and theologians. The library comprises the Bible (Old and New Testaments), prayer books, interpretations of the Scriptures by authors like John Chrysostom, Theophylact of Bulgaria, Ephrem the Syrian, Cyril of Alexandria, Theophan the Recluse, and others. It covers various theological sections such as dogmatics, apologetics, homiletics, letters of saints, and other Christian literature. The program's interface provides a range of convenient functions and settings to enhance the reading experience.

With over 1600 literary works, flexible text display settings (font selection, color and texture changes for the background "paper"), search by author or title, text fragment search, unlimited bookmarks, support for horizontal reading mode, contents for extensive works, automatic bookmarking, night mode, author portraits, and links to Wikipedia biographies.