The Pravoslavni Kalendar is a feature-rich application designed for iPhone users. It serves as a comprehensive Orthodox calendar and prayer book, providing users with a wide range of useful features.

The church calendar section covers the period from 2012 to the current year, displaying dates according to both the Gregorian and Julian calendars. It also includes information on moon phases and fasting types. The church calendar automatically adjusts moveable holidays and fasts based on Easter and moon phases.

In addition to the calendar, the app also provides information on holidays and Patron saints day dates. Each holiday and Patron saint entry includes the date, as well as an icon and biography of the saint.

Pravoslavni Kalendar also includes a prayer book with over fifty prayers, allowing users to easily access and recite their favorite prayers.

The app also offers the convenience of a "Today Widget" and stickers for the iMessage app, enhancing the user experience.

Please note that the application is in Serbian language, catering to Serbian-speaking users.