# iReformed vs Heidelberg Catechism (RCUS)

The clearest difference is price: Heidelberg Catechism (RCUS) at Free against iReformed's $0.99. iReformed's advantage is review sentiment (93% vs 50%) and update cadence (every 3 months vs every 38 months). On rating, ads, in-app purchases and device support there is nothing between them.

Heidelberg Catechism (RCUS) is free to download; iReformed costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.9 for iReformed against 5.0 for Heidelberg Catechism (RCUS). That said, the two scores are not equally well evidenced: iReformed has 362 ratings behind it against 2, so its average is the more settled of the two. Written reviews are what separate them: 93% of iReformed's written reviews are positive against 50% of Heidelberg Catechism (RCUS)'s.

iReformed ships an update every 3 months, Heidelberg Catechism (RCUS) every 38 months. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | iReformed | Heidelberg Catechism (RCUS) |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [4.9 (362 ratings)](https://appshunter.io/ios/app/ireformed/id337067833/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/heidelberg-catechism-rcus/id1443296306/reviews)** |
| Number of ratings | **362** | 2 |
| Positive reviews | **93.3% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 38 months |
| Monetization | Paid | **Free** |
| Best chart rank | **#163** | — |
| Size | 3 MB | 4 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [George Dimidik](https://appshunter.io/developer/943429617) | [Andrew Dirks](https://appshunter.io/developer/1443296305) |

## What reviewers say

### iReformed

[App page](https://appshunter.io/ios/app/ireformed/id337067833)

**Currently charting:** #163 Top Paid · Reference (US App Store)

Access a comprehensive digital library of key documents and confessionals from the Presbyterian and Continental Reformed faith. This app serves as a handy reference and study tool, with all content stored locally for offline access. It includes features for memory training and remembers your last reading location.

**Highlights:** Offline access to all documents, Memory trainer for catechisms, Remembers last reading location, Includes scripture proofs, Hyperlinks for quick navigation

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to navigate and intuitive interface
- 📚 Comprehensive collection of reformed confessions and catechisms in one place
- 🔗 Scripture proofs and references readily accessible
- 🎓 Excellent tool for study, memorization, and teaching
- 💰 Affordable pricing (99 cents)

**What reviewers complain about**

- 🔤 Neon blue font color difficult to read for some users
- 📖 King James Version only for scripture proofs (archaic language)
- 🔍 No search function to find specific questions or passages
- ✂️ Cannot copy/paste text due to scripture links
- 🗂️ Limited navigation options (no table of contents for some documents)

**Reported bugs**

- 1689 Baptist Confession removed in recent update
- Scripture links prevent text selection and copying
- Font size previously too small (fixed in later update)

**Requested features**

- Add modern Bible translations (ESV, NASB, NIV, New Living Translation)
- Implement search functionality by question, keyword, or scripture passage
- Add copy/paste functionality independent of scripture links
- Include note-taking and highlighting features
- Add landscape view and text zoom/font size adjustment


### Heidelberg Catechism (RCUS)

[App page](https://appshunter.io/ios/app/heidelberg-catechism-rcus/id1443296306)

This app aids in memorizing the Heidelberg Catechism with three distinct study modes. Track your progress, practice questions individually, and test your knowledge with customizable quizzes. It offers a structured approach to learning the 129 questions and answers.

**Highlights:** Sequential review of all questions and answers, Mark questions as mastered, Practice questions individually with hints, Filter questions by mastered/unmastered, Randomized quizzes with customizable ranges, Quiz exclusively on mastered questions

**In-app purchases:** none


## Frequently asked questions

### Is iReformed free?

iReformed costs $0.99, with no in-app purchases.

### Is Heidelberg Catechism (RCUS) free?

Heidelberg Catechism (RCUS) is free to download, with no in-app purchases.

### Which has better reviews, iReformed or Heidelberg Catechism (RCUS)?

Heidelberg Catechism (RCUS) is rated higher. iReformed averages 4.9 out of 5 from 362 ratings, while Heidelberg Catechism (RCUS) averages 5.0 from 2 ratings.

### Do iReformed or Heidelberg Catechism (RCUS) have ads?

Neither iReformed nor Heidelberg Catechism (RCUS) shows ads.

### Which is updated more often, iReformed or Heidelberg Catechism (RCUS)?

iReformed ships an update every 3 months, and Heidelberg Catechism (RCUS) every 38 months. Most recently, iReformed was updated on October 26, 2026 and Heidelberg Catechism (RCUS) on October 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*