Catechesi
Education
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Catechesi brings daily-habit design to the Catholic faith — real theological depth,
not trivia.
HUMAN-REVIEWED, EVERY WORD
Every question, hint, and explanation in Catechesi is reviewed by a real person and cited to a
real, checkable source — a Catechism paragraph, a Scripture verse, a Council document, or a
Magisterial text.
SIXTEEN TOPICS, ONE APP
Church History · Church Fathers · Saints · Dogmas and Doctrine · Councils · Heresies ·
Metaphysics · Apologetics · Liturgy and Mass · Sacred Scripture · Answering Objections ·
Prayer · Church Latin · Virtues and Vices · Our Lady · Old Testament
Work through multiple levels per topic — up to 22 in most, from foundational to genuinely advanced.
Every single question carries a real citation — a Catechism paragraph, a Scripture verse, a Council document, or a Magisterial text. This is a curated, publicly auditable question bank — check our sources yourself, they're open on GitHub.
BUILT LIKE A HABIT, NOT A COURSE
- A daily streak that keeps your practice going
- A skill rating (not a score) that grows as you actually learn — no way to buy or fake it
- A Daily Practice Mix that's always free and never costs a life
- Daily and weekly quests that reward real study — nothing here can be bought or skipped
- Nearly thirty milestones along the way, from your first level to a hundred-day streak
- Friend streaks to keep each other honest — visible only to people you've actually
connected with, never a public leaderboard
- Invite family and friends straight from your profile
EVERY QUESTION IS FREE
The entire question bank — all sixteen topics, every level — is available to every user for free. A subscription only removes the daily cap on how many questions you can miss before waiting until tomorrow. It never unlocks content, never boosts your rating, and never buys standing among friends.
A NOTE ON ACCURACY
Every question is written, cited, and reviewed before publication, but Catechesi is a study aid, not a substitute for the guidance of your parish, a priest, or a qualified spiritual director.
ENTERING THE CHURCH THROUGH OCIA?
Ask your parish director about a free six-month Premium pass — no subscription needed.
If you are a parish representative and would like to get your parish involved please reach out to mycatechesi@gmail.com.
We offer free premium plans for OCIA, as well as bulk pricing for parishes.
Premium (optional): removes the daily practice cap.
- Sole Premium: $24.99/year
- Family Premium: $39.99/year
Auto-renews annually unless canceled at least 24 hours before the current period ends.
Manage or cancel anytime in Settings on your device.
Privacy Policy: https://andrewertl98.github.io/saintly-legal/privacy.html
Terms of Use: https://andrewertl98.github.io/saintly-legal/terms.html
Ratings & Reviews
Nearly doubled the question bank to allow for more foundational knowledge and one additional topic.
Due to the scale of the new question bank current users may lose their existing level history however they will maintain score, purchases, and friends.
The developer, Andrew Ertl, 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:
- Purchases
- Contact Info
- Identifiers
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Andrew Ertl
- Size
- 40.3 MB
- Category
- Education
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - Mac
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.0 or later.
- iPhone
- Languages
- English
- Age Rating
9+
- 9+
- In-App Purchases
Yes
- Catechesi Premium Family $39.99
- Catechesi Premium $24.99
- Copyright
- © 2026 Andrew Ertl
