# Comp 609 vs Fair Limiter

The clearest difference is review sentiment: Comp 609 at 88% against Fair Limiter's 50%. Comp 609 also leads on rating (4.8 vs 4.4) and ratings volume (25 vs 8). Fair Limiter's advantage is update cadence (monthly vs every 7 months). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Comp 609 sells 1 one-off in-app purchase and Fair Limiter sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Comp 609 holds the better App Store score, 4.8 against 4.4. Both are backed by a comparable volume of ratings — 25 and 8 respectively. Written reviews point the same way: 88% of Comp 609's written reviews are positive against 50% of Fair Limiter's.

Comp 609 ships an update every 7 months, Fair Limiter monthly. The most recent releases landed on September 12, 2026 and August 31, 2026 respectively.

## The numbers

| Metric | Comp 609 | Fair Limiter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (25 ratings)](https://appshunter.io/ios/app/comp-609/id1514569444/reviews)** | [4.4 (8 ratings)](https://appshunter.io/ios/app/fair-limiter/id6503627515/reviews) |
| Number of ratings | **25** | 8 |
| Positive reviews | **87.5% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Monthly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 21 MB | 32 MB |
| Requires iOS | **10.0** | 14.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [RRS, OOO](https://appshunter.io/developer/1486125568) | [Jan Maes](https://appshunter.io/developer/1550506252) |

## What reviewers say

### Comp 609

[App page](https://appshunter.io/ios/app/comp-609/id1514569444)

This audio effect plugin emulates analog compressors, offering extensive control over attack, release, ratio, and saturation. It supports various operation modes, external sidechaining, and parallel compression for detailed audio shaping. A demo version is available with a time limit.

**Highlights:** Analog compressor emulation, Adjustable attack, release, and ratio, External sidechain with high-pass filter, Multiple operation modes (M/S, Stereo, Mono), Parallel compression, Oversampling and 64-bit processing, Scalable GUI

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| RRS Comp 609 Unlimited | $4.99 | one-time |


### Fair Limiter

[App page](https://appshunter.io/ios/app/fair-limiter/id6503627515)

This audio unit plugin emulates the classic Fairchild 670 tube compressor and limiter, offering its renowned sonic character. It provides comprehensive controls, including sidechain filters and boost, for detailed audio shaping. A free version is available for testing, with a one-time purchase to remove limitations.

**Highlights:** AUv3 plugin for DAWs, Fairchild 670 emulation, Sidechain filters and boost, Variable-Mu compression, Stereo or Mid/Side setup, 6386 tube simulation

**Features:** Family Sharing, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Fair Limiter Activation | $11.99 | one-time |


## Frequently asked questions

### Is Comp 609 free?

Comp 609 is free to download, with in-app purchases available.

### Is Fair Limiter free?

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

### Which has better reviews, Comp 609 or Fair Limiter?

Comp 609 is rated higher. Comp 609 averages 4.8 out of 5 from 25 ratings, while Fair Limiter averages 4.4 from 8 ratings.

### Do Comp 609 or Fair Limiter have ads?

Neither Comp 609 nor Fair Limiter shows ads.

### Which is updated more often, Comp 609 or Fair Limiter?

Comp 609 ships an update every 7 months, and Fair Limiter monthly. Most recently, Comp 609 was updated on September 12, 2026 and Fair Limiter on August 31, 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.*