Nistikon — Orthodox Calendar
Fasting, Feasts & Prayer Rule
About
This app provides daily Orthodox Christian guidance, including fasting rules, feast days, and scripture readings. It offers a 50-year calendar, customizable prayer rules, and offline functionality. Designed for privacy with no ads or tracking.
What's New in Nistikon
1.1.0
August 14, 2026
Nistikon now speaks Portuguese and Spanish. The whole interface, saint names, feasts, fasting rules, readings and all 17 library prayers are translated — the prayers freshly rendered from the public-domain 1906 sources — and a language picker in Settings switches instantly without restarting the app.
MoreSubscription plans
Nistikon Premium
Calendar, prayer rule, widgets & more.
Developer apps
FAQ
What is the fasting rule today in Nistikon?
Nistikon clearly displays the day's fasting rule in plain English, such as 'Wine and oil are allowed today.' This information is available immediately upon opening the app and works offline.
Does Nistikon have ads?
No, Nistikon is designed with privacy in mind and does not contain any advertisements. It also does not require accounts or track user data.
What are the subscription options for Nistikon Premium?
Nistikon Premium offers two subscription plans: $2.99 per month or $9.99 per year. Both plans include a 2-week free trial for new subscribers.
Can I use Nistikon offline?
Yes, Nistikon is built with bundled content that works entirely offline, even in Airplane Mode. This ensures you can access fasting rules, feasts, and prayers without an internet connection.
How do I cancel my Nistikon Premium subscription?
Subscriptions auto-renew unless canceled at least 24 hours before the end of the current period. You can manage and cancel your subscription directly within your App Store account settings.
What features are unlocked with Nistikon Premium?
Nistikon Premium unlocks the full 50-year calendar, the customizable Prayer Rule with optional reminders, home and lock screen widgets, and the Old-Calendar (Julian) mode.
What age rating does Nistikon have?
Nistikon has an age rating of 4+, making it suitable for a wide range of users. It is available on both iPhone and iPad devices.
How often is Nistikon updated?
The latest version of Nistikon is 1.1.0, which was last updated on August 14, 2026. The app was initially released on August 6, 2026.