# CalmusNotation vs Guitar Notation Pro

The clearest difference is review sentiment: Guitar Notation Pro at 56% against CalmusNotation's 0%. Guitar Notation Pro also leads on ratings volume (24 vs 5) and iOS requirement (13 vs 15.6). CalmusNotation's advantage is price (Free vs $149.00) and rating (4.4 vs 4.1). On update cadence, ads, in-app purchases and device support there is nothing between them.

CalmusNotation is free to download; Guitar Notation Pro costs $149.00 up front. Neither carries in-app purchases, so what you see is what you pay.

CalmusNotation holds the better App Store score, 4.4 against 4.1. Both are backed by a comparable volume of ratings — 5 and 24 respectively. Written reviews complicate that: 0% of CalmusNotation's written reviews are positive against 56% of Guitar Notation Pro's, so the app with the better star average is not the one people write more warmly about.

CalmusNotation ships an update every 4 months, Guitar Notation Pro every 3 months. The most recent releases landed on June 5, 2026 and August 13, 2026 respectively.

## The numbers

| Metric | CalmusNotation | Guitar Notation Pro |
| --- | --- | --- |
| Price | **Free** | $149.00 |
| Rating | **[4.4 (5 ratings)](https://appshunter.io/ios/app/calmusnotation/id993026661/reviews)** | [4.1 (24 ratings)](https://appshunter.io/ios/app/guitar-notation-pro/id1144465456/reviews) |
| Number of ratings | 5 | **24** |
| Positive reviews | 0.0% of reviews | **55.6% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 months** |
| Monetization | **Free** | Paid |
| Size | 294 MB | 153 MB |
| Requires iOS | 15.6 | **13** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Erki-tonlist sf](https://appshunter.io/developer/929321904) | [嵩 张](https://appshunter.io/developer/1091921941) |

## What reviewers say

### CalmusNotation

[App page](https://appshunter.io/ios/app/calmusnotation/id993026661)

Create and visualize musical compositions using AI-powered graphical notation. This app leverages advanced AI, inspired by NASA's Lisp programming, to generate original music based on user input and can display music from other compatible apps for live performance.

**Highlights:** AI-powered music composition, Graphical notation display, Real-time performance visualization, Lisp-based AI engine, User input-driven music creation, Integration with CalmusComposer and CalmusPlay

**In-app purchases:** none


### Guitar Notation Pro

[App page](https://appshunter.io/ios/app/guitar-notation-pro/id1144465456)

Compose, edit, and playback guitar sheet music scores with this powerful notation app. Supports multi-track tabs, chord charts, and various instruments. Export your compositions in industry-standard formats.

**Highlights:** Compose and edit sheet music, Multi-track tab support, Chord chart configuration, High-quality playback, Export to MusicXML, MIDI, PNG, PDF, Supports up to 8 staff

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

**In-app purchases:** none


## Frequently asked questions

### Is CalmusNotation free?

CalmusNotation is free to download, with no in-app purchases.

### Is Guitar Notation Pro free?

Guitar Notation Pro costs $149.00, with no in-app purchases.

### Which has better reviews, CalmusNotation or Guitar Notation Pro?

CalmusNotation is rated higher. CalmusNotation averages 4.4 out of 5 from 5 ratings, while Guitar Notation Pro averages 4.1 from 24 ratings.

### Do CalmusNotation or Guitar Notation Pro have ads?

Neither CalmusNotation nor Guitar Notation Pro shows ads.

### Which is updated more often, CalmusNotation or Guitar Notation Pro?

CalmusNotation ships an update every 4 months, and Guitar Notation Pro every 3 months. Most recently, CalmusNotation was updated on June 5, 2026 and Guitar Notation Pro on August 13, 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.*