# Calvin Opera vs Luther’s Commentary

The clearest difference is rating: Luther’s Commentary at 5.0 against Calvin Opera's 1.0. Luther’s Commentary also leads on update cadence (every 3 months vs every 9 months) and price ($1.99 vs $4.99). On review sentiment, ratings volume, ads and in-app purchases there is nothing between them.

Calvin Opera costs $4.99 and Luther’s Commentary $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Luther’s Commentary holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Calvin Opera ships an update every 9 months, Luther’s Commentary every 3 months. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Calvin Opera | Luther’s Commentary |
| --- | --- | --- |
| Price | $4.99 | **$1.99** |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/calvin-opera/id1042943229/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/luthers-commentary-galatians/id6446148444/reviews)** |
| Number of ratings | 1 | 1 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 3 months** |
| Monetization | Paid | Paid |
| Size | 1.6 GB | 27 MB |
| Requires iOS | 18.6 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [jeong youngoh](https://appshunter.io/developer/429170564) | [Pearl Crescent](https://appshunter.io/developer/349060606) |

## What reviewers say

### Calvin Opera

[App page](https://appshunter.io/ios/app/calvin-opera/id1042943229)

Access the complete writings of John Calvin with fast search capabilities and an integrated Latin dictionary. This comprehensive collection is a primary resource for studying Calvin's extensive theological works.

**Highlights:** Complete Works of John Calvin, Fast search functionality, Integrated Latin dictionary, Primary source for Calvin studies, Organized by volume and content type

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

**In-app purchases:** none


### Luther’s Commentary

[App page](https://appshunter.io/ios/app/luthers-commentary-galatians/id6446148444)

Access Martin Luther's abridged commentary on the book of Galatians in an easy-to-use application. Navigate between chapters and topics with adjustable text size. This offline resource provides insight into the central tenets of Christianity.

**Highlights:** Complete text of Theodore Graebner's translation, Easy chapter and topic navigation, Adjustable text size, No ads, Offline access, Fast and easy to use

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Calvin Opera free?

Calvin Opera costs $4.99, with no in-app purchases.

### Is Luther’s Commentary free?

Luther’s Commentary costs $1.99, with no in-app purchases.

### Which has better reviews, Calvin Opera or Luther’s Commentary?

Luther’s Commentary is rated higher. Calvin Opera averages 1.0 out of 5 from 1 ratings, while Luther’s Commentary averages 5.0 from 1 ratings.

### Do Calvin Opera or Luther’s Commentary have ads?

Neither Calvin Opera nor Luther’s Commentary shows ads.

### Which is updated more often, Calvin Opera or Luther’s Commentary?

Calvin Opera ships an update every 9 months, and Luther’s Commentary every 3 months. Most recently, Calvin Opera was updated on November 6, 2026 and Luther’s Commentary on November 3, 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.*