# TB Compressor vs AU3FX

The clearest difference is price: AU3FX at $4.99 against TB Compressor's $8.99. AU3FX also leads on review sentiment (100% vs 82%). On rating, ratings volume, ads and in-app purchases there is nothing between them.

TB Compressor costs $8.99 and AU3FX $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

TB Compressor holds the better App Store score, 4.8 against 4.6. Both are backed by a comparable volume of ratings — 24 and 10 respectively. Written reviews complicate that: 82% of TB Compressor's written reviews are positive against 100% of AU3FX's, so the app with the better star average is not the one people write more warmly about.

## The numbers

| Metric | TB Compressor | AU3FX |
| --- | --- | --- |
| Price | $8.99 | **$4.99** |
| Rating | **[4.8 (24 ratings)](https://appshunter.io/ios/app/tb-compressor/id1517791397/reviews)** | [4.6 (10 ratings)](https://appshunter.io/ios/app/au3fxpeakq/id1597768353/reviews) |
| Number of ratings | **24** | 10 |
| Positive reviews | 82.4% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Monetization | Paid | Paid |
| Size | 11 MB | 2 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ToneBoosters](https://appshunter.io/developer/1472446500) | [Kymatica AB](https://appshunter.io/developer/522046659) |

## What reviewers say

### TB Compressor

[App page](https://appshunter.io/ios/app/tb-compressor/id1517791397)

This professional audio plugin offers mastering-grade compression and dynamics processing for iOS devices. It features advanced controls like soft knee, parallel, upward/downward, and band-limited compression, with real-time visual feedback and an interactive interface.

**Highlights:** Mastering-grade compression, Upward and downward compression, External side-chain input, Band-limited and spatially selective compression, Real-time interactive display, Audition function for compressor and side chain, Integrated spectrum analyzer

**In-app purchases:** none


### AU3FX

[App page](https://appshunter.io/ios/app/au3fxpeakq/id1597768353)

A powerful 4-band parametric stereo equalizer AUv3 plugin for iOS. It offers detailed frequency control, real-time spectrum analysis, and customizable presets for subtle enhancements or aggressive sound shaping. Load it within compatible music apps to enhance your audio.

**Highlights:** 4-band parametric stereo equalizer, High quality 32-bit DSP engine, Interactive frequency response curve, Real-time FFT spectrum analyzer, Bundled presets and user preset saving, Multiple instances and external control

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is TB Compressor free?

TB Compressor costs $8.99, with no in-app purchases.

### Is AU3FX free?

AU3FX costs $4.99, with no in-app purchases.

### Which has better reviews, TB Compressor or AU3FX?

TB Compressor is rated higher. TB Compressor averages 4.8 out of 5 from 24 ratings, while AU3FX averages 4.6 from 10 ratings.

### Do TB Compressor or AU3FX have ads?

Neither TB Compressor nor AU3FX 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.*