# Hooktheory II vs APM Sweep

The clearest difference is price: APM Sweep at Free against Hooktheory II's $19.99. APM Sweep also leads on in-app purchases (none vs 1). Hooktheory II's advantage is rating (4.8 vs 1.0) and review sentiment (92% vs 50%). On ads and device support there is nothing between them.

APM Sweep is free to download; Hooktheory II costs $19.99 up front. Hooktheory II sells 1 one-off in-app purchase. APM Sweep asks for nothing beyond the download.

Hooktheory II holds the better App Store score, 4.8 against 1.0. That said, the two scores are not equally well evidenced: Hooktheory II has 28 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 92% of Hooktheory II's written reviews are positive against 50% of APM Sweep's.

Hooktheory II ships an update monthly, APM Sweep every 10 months. The most recent releases landed on September 21, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Hooktheory II | APM Sweep |
| --- | --- | --- |
| Price | $19.99 | **Free** |
| Rating | **[4.8 (28 ratings)](https://appshunter.io/ios/app/hooktheory-ii/id1148793641/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/apm-sweep/id1492480271/reviews) |
| Number of ratings | **28** | 1 |
| Positive reviews | **92.0% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 10 months |
| Monetization | Free with in-app purchases | **Free** |
| Best chart rank | **#165** | — |
| Size | 123 MB | 35 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hooktheory LLC](https://appshunter.io/developer/862112895) | [Lorenzo Rizzi](https://appshunter.io/developer/856070642) |

## What reviewers say

### Hooktheory II

[App page](https://appshunter.io/ios/app/hooktheory-ii/id1148793641)

**Currently charting:** #165 Top Paid · Music (US App Store)

This app helps you understand and create sophisticated music by teaching advanced chord progressions and melody techniques. Learn from interactive exercises and audiovisual examples inspired by popular artists. It's designed for musicians looking to enhance their songwriting skills.

**Highlights:** Learn seventh chords, embellishments, and secondary chords, Master minor harmony, modes, and modal mixture, Discover songwriting tactics from famous artists, Interactive exercises and audiovisual examples, Compose chords and melody in various scales, Utilize chord inversions and complex chord types

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version | $19.99 | one-time |


### APM Sweep

[App page](https://appshunter.io/ios/app/apm-sweep/id1492480271)

This application helps measure and analyze a room's acoustical performance, including reverberation time and clarity. It suggests materials to improve sound quality and allows for saving, loading, and exporting results in common spreadsheet formats. PDF reports with photos can also be generated.

**Highlights:** Acoustical performance measurement, Reverberation time and clarity analysis, Material recommendation for improvement, Save, load, and export results, Generate PDF reports with photos, Tutorial slideshow for guidance

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

**In-app purchases:** none


## Frequently asked questions

### Is Hooktheory II free?

Hooktheory II costs $19.99, and also offers in-app purchases.

### Is APM Sweep free?

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

### Which has better reviews, Hooktheory II or APM Sweep?

Hooktheory II is rated higher. Hooktheory II averages 4.8 out of 5 from 28 ratings, while APM Sweep averages 1.0 from 1 ratings.

### Do Hooktheory II or APM Sweep have ads?

Neither Hooktheory II nor APM Sweep shows ads.

### Which is updated more often, Hooktheory II or APM Sweep?

Hooktheory II ships an update monthly, and APM Sweep every 10 months. Most recently, Hooktheory II was updated on September 21, 2026 and APM Sweep on September 24, 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.*