Aprakos (ancient Greek ἄπρακτος - non-working, festive) - a kind of Gospel or Apostle, otherwise called the "Weekly Gospel" or "Liturgical Gospel", in which the text is organized calendar, according to the weekly church readings. Aprakos are many ancient Slavic gospel manuscripts: Savvin's book, Ostromir gospel, Arkhangelsk gospel and others.

The application contains the Apostolic and Gospel readings read at all church services in 2023, in accordance with the charter of the Orthodox Church.