The Russian Orthodox Calendar Pro comprises:

- The church calendar, for the period between 2012. and 2030., with daily date review according to Gregorian and Julian calendar, the moon phases and fast types. The church calendar automatically adjusts moveable holidays and fasts for every year according to Easter as well as the moon phases.
- Prayer book, with more than seventy prayers.
- Easter date calculation, as well as Catholic Easter date, by simply entering the year.
- List of multi-days and single-day fasts for the selected year, with dates, according to the new and the old calendar.
- "Today widget"
- Stickers for iMessage App

Pro version of the Russian Orthodox Calendar does not show advertisement and do not have any usage restrictions.

Application is in Russian language.