# Calvin Opera vs 1650 Split Leaf Psalter

The clearest difference is price: 1650 Split Leaf Psalter at Free against Calvin Opera's $15.99. 1650 Split Leaf Psalter also leads on rating (4.9 vs 1.0) and update cadence (every 2 days vs every 9 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

1650 Split Leaf Psalter is free to download; Calvin Opera costs $15.99 up front. Neither carries in-app purchases, so what you see is what you pay.

1650 Split Leaf Psalter holds the better App Store score, 4.9 against 1.0. That said, the two scores are not equally well evidenced: 1650 Split Leaf Psalter has 52 ratings behind it against 1, so its average is the more settled of the two.

Calvin Opera ships an update every 9 months, 1650 Split Leaf Psalter every 2 days. The most recent releases landed on October 7, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Calvin Opera | 1650 Split Leaf Psalter |
| --- | --- | --- |
| Price | $15.99 | **Free** |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/calvin-opera/id1042943229/reviews) | **[4.9 (52 ratings)](https://appshunter.io/ios/app/1650-split-leaf-psalter/id1198280376/reviews)** |
| Number of ratings | 1 | **52** |
| Positive reviews | — | 84.2% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 2 days** |
| Monetization | Paid | **Free** |
| Size | 1.6 GB | 16 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [jeong youngoh](https://appshunter.io/developer/429170564) | [Romesh Prakashpalan](https://appshunter.io/developer/653742798) |

## 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

**In-app purchases:** none


### 1650 Split Leaf Psalter

[App page](https://appshunter.io/ios/app/1650-split-leaf-psalter/id1198280376)

Access the complete text and music of the 1650 Scottish Metrical Psalter. This digital edition integrates words and melodies, including tunes from the Free Church of Scotland (Continuing) Split Leaf Psalter, along with historical notes and prefaces.

**Highlights:** Complete text of 1650 Scottish Metrical Psalter, Integrated words and music, Tunes from Free Church of Scotland (Continuing) Split Leaf Psalter, John Brown of Haddington's Notes, Preface to the 1650 Psalter

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

**In-app purchases:** none


## Frequently asked questions

### Is Calvin Opera free?

Calvin Opera costs $15.99, with no in-app purchases.

### Is 1650 Split Leaf Psalter free?

1650 Split Leaf Psalter is free to download, with no in-app purchases.

### Which has better reviews, Calvin Opera or 1650 Split Leaf Psalter?

1650 Split Leaf Psalter is rated higher. Calvin Opera averages 1.0 out of 5 from 1 ratings, while 1650 Split Leaf Psalter averages 4.9 from 52 ratings.

### Do Calvin Opera or 1650 Split Leaf Psalter have ads?

Neither Calvin Opera nor 1650 Split Leaf Psalter shows ads.

### Which is updated more often, Calvin Opera or 1650 Split Leaf Psalter?

Calvin Opera ships an update every 9 months, and 1650 Split Leaf Psalter every 2 days. Most recently, Calvin Opera was updated on October 7, 2026 and 1650 Split Leaf Psalter on October 19, 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.*