# Score Master vs Chord Progression Lab

The clearest difference is price: Chord Progression Lab at $0.99 against Score Master's $9.99. Score Master's advantage is iOS requirement (17.5 vs 26.5). On ads, in-app purchases and device support there is nothing between them.

Score Master costs $9.99 and Chord Progression Lab $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Score Master | Chord Progression Lab |
| --- | --- | --- |
| Price | $9.99 | **$0.99** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | — |
| Monetization | Paid | — |
| Size | 15 MB | 2 MB |
| Requires iOS | **17.5** | 26.5 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Sanghyun Park](https://appshunter.io/developer/1846257439) | [David Mickey](https://appshunter.io/developer/1506246434) |

## What reviewers say

### Score Master

[App page](https://appshunter.io/ios/app/score-master-music-pdf-reader/id6769524427)

This app is a professional PDF sheet music reader designed for musicians. It offers high-quality rendering, annotation tools, a built-in metronome, and seamless import options for sheet music. Manage your scores and setlists efficiently for practice and performance.

**Highlights:** High-quality PDF score viewer, Import photos and ZIP files, Annotation with Apple Pencil, Built-in metronome, Setlist management, Bluetooth page turner support

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

**In-app purchases:** none


### Chord Progression Lab

[App page](https://appshunter.io/ios/app/chord-progression-lab/id6778928044)

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

**In-app purchases:** none


## Frequently asked questions

### Is Score Master free?

Score Master costs $9.99, with no in-app purchases.

### Is Chord Progression Lab free?

Chord Progression Lab costs $0.99, with no in-app purchases.

### Do Score Master or Chord Progression Lab have ads?

Neither Score Master nor Chord Progression Lab shows ads.

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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.*