# Fretwork vs 4Comp

The clearest difference is price: Fretwork at Free against 4Comp's $4.99. 4Comp's advantage is in-app purchases (none vs 1). On rating, ratings volume, update cadence and ads there is nothing between them.

Fretwork is free to download; 4Comp costs $4.99 up front. Fretwork sells 1 one-off in-app purchase. 4Comp asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Fretwork against 5.0 for 4Comp. Both are backed by a comparable volume of ratings — 2 and 2 respectively.

Fretwork ships an update every 4 days, 4Comp weekly. The most recent releases landed on October 31, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Fretwork | 4Comp |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/fretwork-chords-and-scales/id6796527006/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/4comp-auv3-compressor-plugin/id6805205834/reviews) |
| Number of ratings | 2 | 2 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 days** | Weekly |
| Monetization | **Free** | Paid |
| Size | 49 MB | 8 MB |
| Requires iOS | 16.4 | **16.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [STEPHEN CARROLL HAGER](https://appshunter.io/developer/6796527008) | [NATHAN THOMAS MATHIS](https://appshunter.io/developer/1870347850) |

## What reviewers say

### Fretwork

[App page](https://appshunter.io/ios/app/fretwork-chords-and-scales/id6796527006)

This music reference app generates chord shapes, scale positions, and voicings dynamically from music theory, rather than relying on pre-set databases. It supports any tuning, string count, and instrument, offering comprehensive tools for guitarists and musicians.

**Highlights:** Dynamic chord and scale generation, Supports any tuning and string count, Comprehensive chord types and scales, Interactive CAGED system visualization, Circle of Fifths with diatonic chords, Integrated tuner and metronome

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Fretwork Pro | $5.99 | one-time |


### 4Comp

[App page](https://appshunter.io/ios/app/4comp-auv3-compressor-plugin/id6805205834)

This audio plugin offers four distinct analog-style compressor models (FET, VCA, Optical, Vari-Mu), each with its own sound and interface. It provides advanced features like stereo linking, sidechain filtering, and real-time transfer curve visualization.

**Highlights:** Four analog compressor models (FET, VCA, Optical, Vari-Mu), Unique DSP engine and interface for each model, Live transfer curve visualization, Stereo link and sidechain high-pass filter, Dry/wet mix and auto make-up gain, 17 presets included, 0-sample latency

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

**In-app purchases:** none


## Frequently asked questions

### Is Fretwork free?

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

### Is 4Comp free?

4Comp costs $4.99, with no in-app purchases.

### Which has better reviews, Fretwork or 4Comp?

Fretwork and 4Comp are both rated 5.0 out of 5 on the App Store, from 2 and 2 ratings respectively.

### Do Fretwork or 4Comp have ads?

Neither Fretwork nor 4Comp shows ads.

### Which is updated more often, Fretwork or 4Comp?

Fretwork ships an update every 4 days, and 4Comp weekly. Most recently, Fretwork was updated on October 31, 2026 and 4Comp on November 6, 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.*