Learn catechism, OCIA, and marriage preparation; follow the Catholic calendar, read articles, discover churches, and pray the Rosary on iPhone and Apple Watch.
Catholic Catechism Classes supports learners at every stage—from strengthening the foundations of faith to the catechumenate, mystagogy, and marriage preparation—with short lessons, formative assessments, and links to Church sources.
TWO IN-DEPTH GUIDED PROGRAMS
• Catechumenate and Mystagogy: 26 stages from free inquiry and the Gospel to Christian initiation, mystagogy, and new life.
• Catholic Marriage Preparation: 22 stages covering vocation, communication, consent, the sacrament, practical preparation, and family life.
THE COMPLETE LIBRARY
• 8 learning paths, 107 stages, 98 in-path assessment questions, and a separate 120-question Faith Challenge.
With the app, you can:
• Follow learning paths from the foundations of faith through what the Church professes, celebrates, lives, and prays.
• Review with quizzes and Faith Challenge questions, including explanations and references.
• Track progress, resume your next lesson, and use synced content when your connection is unstable.
• View the Catholic calendar, observances, and learning reminders.
• Stay connected with your class, family, and catechist when invited.
The app is a learning and formation aid. It does not issue certificates, determine sacramental eligibility, or replace guidance and procedures from your parish or diocese.
Your account is protected by email verification. You can reset your password, sign out, and delete your account in the app. Catechism has no ads and does not sell personal data.
For help, open the Support page in the app information.
On Apple Watch, pray with guided mysteries, a synchronized counter, and progress haptics. The Rosary complication on the Smart Stack or watch face lets you quickly return to your prayer.
On Apple Watch, view the Catholic calendar, open it from a complication, and pray with guided mysteries, a synchronized counter, and progress haptics.
Ratings & Reviews
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The Catholic calendar is now closer at hand on iPhone and Apple Watch:
• Choose an iPhone reminder time and receive it with sound or quietly.
• Without signing in, receive the feast, season, and liturgical rank; the offline schedule refreshes whenever you open the app, and previous choices remain unchanged.
• See the next reminder and send a test notification from Settings.
• Apple Watch adds today’s calendar, day navigation, and complications for multiple watch-face families.
Version 4.4.0
The developer, Dat Thanh Nguyen, 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 Linked to You
The following data may be collected and linked to your identity:
Location
Contact Info
User Content
Identifiers
Usage Data
Sensitive Info
Diagnostics
Other Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
Location
Identifiers
Other Data
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
