# PhaseShift vs 4Comp

The clearest difference is price: PhaseShift at Free against 4Comp's $4.99. PhaseShift also leads on update cadence (every 2 days vs weekly) and device support (4 vs 2). 4Comp's advantage is in-app purchases (none vs 1). On rating, ratings volume, ads and iOS requirement there is nothing between them.

PhaseShift is free to download; 4Comp costs $4.99 up front. PhaseShift 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 PhaseShift against 5.0 for 4Comp. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

PhaseShift ships an update every 2 days, 4Comp weekly. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | PhaseShift | 4Comp |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/phaseshift/id6754306052/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/4comp-auv3-compressor-plugin/id6805205834/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 days** | Weekly |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 33 MB | 3 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | **iPhone, iPad, Mac, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Nevv Atlantis LLC](https://appshunter.io/developer/1785977795) | [NATHAN THOMAS MATHIS](https://appshunter.io/developer/1870347850) |

## What reviewers say

### PhaseShift

[App page](https://appshunter.io/ios/app/phaseshift/id6754306052)

A private, high-fidelity music player for your owned music collection. Import and organize your audio files, enjoy detailed playback features, and customize your listening experience without ads or tracking.

**Highlights:** Import music from various sources, Organize and customize library, High-fidelity audio playback, Customizable playback controls, Create and edit playlists, Sync library across devices, Offline functionality

**Features:** Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PhaseShift Pro | $4.99 | 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 PhaseShift free?

PhaseShift 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, PhaseShift or 4Comp?

PhaseShift and 4Comp are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.

### Do PhaseShift or 4Comp have ads?

Neither PhaseShift nor 4Comp shows ads.

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

PhaseShift ships an update every 2 days, and 4Comp weekly. Most recently, PhaseShift was updated on October 25, 2026 and 4Comp on October 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.*