"Православ календарь поста" is an iPhone application developed by Igor Kuznetsov, available for free in the Lifestyle category. This program serves as an Orthodox Church calendar, providing daily Gospel readings, holidays, fasting guidelines, and fasting recipes. Users can access a vast array of content including daily Gospel readings, troparia, kontakia, quotes of the day, and more.

The app features a calendar displaying Gospel readings, fasting recommendations, and recipes for fasting breakfast, lunch, and dinner. It presents the calendar in both the new and old styles, highlighting Easter, major holidays, fasting days, and more. Additionally, users can explore the Bible (Old and New Testaments) in the Synodal translation and discover fasting recipes for delicious meals while observing fasting periods.