Comparison

CCCSeries2 Catechism vs Vox Petri

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

CCCSeries2 Catechism

Access the complete Catechism of the Catholic Church and all Vatican II documents directly from the Vatican website. This reference tool is organized for easy navigation through its four main sections: Beliefs, Sacraments, Morality, and Prayer.

Highlights
  • Complete Catechism of the Catholic Church
  • All Vatican II documents
  • Direct Vatican website links
  • Organized by topic
  • Smooth navigation
  • Summary of Second Vatican Council
Features
Read full description

The Ultimate Catholic Reference Guide Deepen your faith and study with the absolute gold standard of Catholic teaching. The CCCSeries App brings you the ENTIRE Catechism of the Catholic Church and ALL 16 Vatican II documents, streaming instantly and securely directly from the official Vatican website. As St. John Paul II declared, the Catechism is "a sure and authentic reference text for teaching Catholic doctrine." This app is your gateway to that truth. Why This Is the BEST Reference Tool Available: 100% Authentic Sourcing: Every text connects directly to the Vatican website inside the app, ensuring absolute fidelity to the Magisterium while strictly adhering to USCCB copyright laws. All-In-One Library: Access the complete Catechism, all 16 Vatican II documents, plus an exclusive summary explaining the Council’s purpose, history, and real-world implementation. Flawless Navigation: Experience a beautiful, smooth, and highly intuitive user interface designed for effortless study, reading, and contemplation. Perfect for Everyone: An essential companion for home-schoolers, Catechists, CCE teachers, college students, seminarians, and anyone seeking theological truth at their fingertips. Perfectly Organized for Seamless Study: The Catechism: Divided into the four pillars of faith—Beliefs, Sacraments, Morality, and Prayer—and meticulously sub-categorized by topic. Vatican II Documents: Cleanly grouped into the Council's official Constitutions, Declarations, and Decrees for rapid reference. Important Usage Notes: Internet Connection Required: To comply with Holy See copyright guidelines and keep text verification authentic, a Wi-Fi or cellular internet connection is required to open the Vatican links. Academic Use: Exemptions apply for academic discourse (dissertations, scholarly articles, and course materials) provided all citations are properly acknowledged.

About

Vox Petri

Features
Read full description

Vox Petri brings 145 years of papal encyclicals to your fingertips. Read the complete texts of 221 encyclicals from Leo XIII through Leo XIV, explore thematic connections across centuries of Church teaching, and visualize the web of citations linking documents together. Features include a full-text reader with paragraph-level bookmarks, 20 thematic threads tracing ideas like Human Dignity, Social Justice, and Faith & Reason across the tradition, and an interactive connection graph showing how encyclicals cite and build on each other. Future releases may include full text search and the ability to get answers to questions via large language model integrations to the encyclical corpus.

Screenshots

CCCSeries2 Catechism4 screens
Vox Petri4 screens

Verdict

The call

The clearest difference is price: Vox Petri at Free against CCCSeries2 Catechism's $1.99. Vox Petri also leads on update cadence (every 2 weeks vs every 5 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Vox Petri is free to download; CCCSeries2 Catechism costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

CCCSeries2 Catechism ships an update every 5 months, Vox Petri every 2 weeks. The most recent releases landed on November 4, 2026 and October 24, 2026 respectively.

Scorecard2 real differences · 8 level
CCCSeries2 Catechism versus Vox Petri: the parameters behind the verdict, then further details
ParameterCCCSeries2 CatechismVox Petri
Price$1.99Free — better
Rating2.3 (7 ratings) — better—
Positive reviews16.7% of reviews—
Number of ratings7 — better—
Update frequencyEvery 5 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.0 — better16.4
Further details — not scored
Size25 MB85 MB
Age rating4+4+
DeveloperBil KimesJonathan Liang

In-app purchases

None

CCCSeries2 Catechism

No in-app purchases

None

Vox Petri

No in-app purchases

Questions

Is CCCSeries2 Catechism free?
CCCSeries2 Catechism costs $1.99, with no in-app purchases.
Is Vox Petri free?
Vox Petri is free to download, with no in-app purchases.
Do CCCSeries2 Catechism or Vox Petri have ads?
Neither CCCSeries2 Catechism nor Vox Petri shows ads.
Which is updated more often, CCCSeries2 Catechism or Vox Petri?
CCCSeries2 Catechism ships an update every 5 months, and Vox Petri every 2 weeks. Most recently, CCCSeries2 Catechism was updated on November 4, 2026 and Vox Petri on October 24, 2026.

Other comparisons