# Music Calculator vs Chord Master Pro

The clearest difference is update cadence: Chord Master Pro at every 2 days against Music Calculator's every 2 weeks. Chord Master Pro also leads on iOS requirement (15 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Music Calculator sells 3 in-app purchases, starting at $2.99 per month and Chord Master Pro sells 1 in-app purchase, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Music Calculator ships an update every 2 weeks, Chord Master Pro every 2 days. The most recent releases landed on November 7, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Music Calculator | Chord Master Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (3 ratings)](https://appshunter.io/ios/app/music-calculator-notation/id1615462763/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 2 days** |
| Monetization | Freemium | — |
| Size | 53 MB | 30 MB |
| Requires iOS | 18.0 | **15** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [JET Powered Apps Ltd.](https://appshunter.io/developer/507429865) | [万敏 赖](https://appshunter.io/developer/6773163918) |

## What reviewers say

### Music Calculator

[App page](https://appshunter.io/ios/app/music-calculator-notation/id1615462763)

A music notation sketchpad for composing and practicing. Quickly input notes and rhythms with a calculator-style keypad, then hear them played back with various instrument sounds. Ideal for learning, practicing difficult passages, or capturing musical ideas.

**Highlights:** Calculator-style note input, Precise playback with 25 instrument sounds, Tempo control and looping for practice, Support for multiple staves and voices, MusicXML import and export, Key and time signature changes, Automatic beaming and tuplets

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $2.99 | per month |
| Annual | $19.99 | per year |
| Music Calculator Pro | $49.99 | one-time |


### Chord Master Pro

[App page](https://appshunter.io/ios/app/chord-master-pro/id6773249257)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock premium features. | $0.99 | per month |


## Frequently asked questions

### Is Music Calculator free?

Music Calculator is free to download, with in-app purchases available.

### Is Chord Master Pro free?

Chord Master Pro is free to download, with in-app purchases available.

### Do Music Calculator or Chord Master Pro have ads?

Neither Music Calculator nor Chord Master Pro shows ads.

### Which is updated more often, Music Calculator or Chord Master Pro?

Music Calculator ships an update every 2 weeks, and Chord Master Pro every 2 days. Most recently, Music Calculator was updated on November 7, 2026 and Chord Master Pro on October 31, 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.*