# CalmusPlay vs GtrLib Chords Pro

The clearest difference is review sentiment: GtrLib Chords Pro at 84% against CalmusPlay's 33%. GtrLib Chords Pro also leads on ratings volume (130 vs 2). CalmusPlay's advantage is price ($2.99 vs $8.99) and rating (5.0 vs 4.8). On update cadence, ads, in-app purchases and monetization model there is nothing between them.

CalmusPlay costs $2.99 and GtrLib Chords Pro $8.99 up front. Neither carries in-app purchases, so what you see is what you pay.

CalmusPlay holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: GtrLib Chords Pro has 130 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 33% of CalmusPlay's written reviews are positive against 84% of GtrLib Chords Pro's, so the app with the better star average is not the one people write more warmly about.

CalmusPlay ships an update every 4 months, GtrLib Chords Pro every 2 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | CalmusPlay | GtrLib Chords Pro |
| --- | --- | --- |
| Price | **$2.99** | $8.99 |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/calmusplay/id941247632/reviews)** | [4.8 (130 ratings)](https://appshunter.io/ios/app/gtrlib-chords-pro/id1394407030/reviews) |
| Number of ratings | 2 | **130** |
| Positive reviews | 33.3% of reviews | **84.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Paid | Paid |
| Size | 291 MB | 11 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, Apple Watch, Vision Pro** |
| Age rating | 4+ | 4+ |
| Developer | [Erki-tonlist sf](https://appshunter.io/developer/929321904) | [Bijoy Thangaraj](https://appshunter.io/developer/453056920) |

## What reviewers say

### CalmusPlay

[App page](https://appshunter.io/ios/app/calmusplay/id941247632)

This app generates original, royalty-free music using artificial intelligence. Users can customize compositions by selecting elements like geographical origin, zodiac sign, interests, and desired speed. It's a simplified version of a desktop music composition program.

**Highlights:** AI music composition, Royalty-free music, Customizable music parameters, Personalized music generation, Simplified desktop version

**Features:** macOS Compatibility

**In-app purchases:** none


### GtrLib Chords Pro

[App page](https://appshunter.io/ios/app/gtrlib-chords-pro/id1394407030)

Access a comprehensive library of guitar chords with detailed fingering and audio demonstrations. Quickly find any chord, explore inversions, and view positions across the fretboard. This tool is designed for guitarists of all levels.

**Highlights:** Vast chord library, Suggested fingering, Audio demonstrations, Chord search, All positions and inversions, Apple Watch app, Export as PNG/MIDI

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is CalmusPlay free?

CalmusPlay costs $2.99, with no in-app purchases.

### Is GtrLib Chords Pro free?

GtrLib Chords Pro costs $8.99, with no in-app purchases.

### Which has better reviews, CalmusPlay or GtrLib Chords Pro?

CalmusPlay is rated higher. CalmusPlay averages 5.0 out of 5 from 2 ratings, while GtrLib Chords Pro averages 4.8 from 130 ratings.

### Do CalmusPlay or GtrLib Chords Pro have ads?

Neither CalmusPlay nor GtrLib Chords Pro shows ads.

### Which is updated more often, CalmusPlay or GtrLib Chords Pro?

CalmusPlay ships an update every 4 months, and GtrLib Chords Pro every 2 months. Most recently, CalmusPlay was updated on November 1, 2026 and GtrLib Chords Pro on November 2, 2026.

---

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