Fast Days
Christian Fasting Calendar
Free · Designed for iPad. Not verified for macOS.
Christians have fasted for two thousand years. Most of us have forgotten when and why. Fast Days helps you rediscover this tradition.
The app calculates every fasting and abstinence day of the year based on the Church calendar — including moveable feasts like Easter, Ember Days, and vigils — so you never have to guess.
THREE TIERS OF PRACTICE
Choose the level that fits your spiritual life:
- Modern: The current discipline (post-1983). Ash Wednesday, Good Friday, and Fridays of Lent.
- Traditional: The practice before 1966. All of Lent, Ember Days, vigils, and every Friday.
- Historical Strict: The ancient discipline. Extended fasts, strict Lenten rules, and the full Advent fast.
DAILY GUIDANCE
Each day includes meal guidance explaining what you can eat, a reflection from Scripture or the Saints, and context for why the Church asks us to fast.
BUILT WITH CARE
Fasting is not for everyone, and the app makes that clear. Exemptions for pregnancy, nursing, illness, age, and other conditions are always visible. You can set your exemptions during onboarding and the calendar will adjust accordingly.
WIDGETS
Four home screen widgets keep your fasting schedule at a glance without opening the app.
LEARN
Ten in-depth articles cover everything from the basics of Catholic fasting to the history of Ember Days and the 1917 Code of Canon Law — written for newcomers and lifelong Catholics alike.
This app is not a substitute for medical advice. Always consult a healthcare professional before changing your diet.
Ratings & Reviews
Added small improvements to onboarding flow and product analytics.
The developer, BOLZ SOBRADO, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- BOLZ SOBRADO
- Size
- 4 MB
- Category
- Lifestyle
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
9+
- 9+
- Contains
Health or Wellness Topics
- Copyright
- © Boaz Sobrado