# Comp 609 vs Filterjam

The clearest difference is in-app purchases: Filterjam at none against Comp 609's 1. Filterjam also leads on rating (5.0 vs 4.8). Comp 609's advantage is update cadence (every 7 months vs every 22 months) and iOS requirement (10.0 vs 14.0). On price, review sentiment, ratings volume and ads there is nothing between them.

Both are free to download. Comp 609 sells 1 one-off in-app purchase. Filterjam asks for nothing beyond the download.

Filterjam holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 25 and 34 respectively. Written reviews complicate that: 88% of Comp 609's written reviews are positive against 83% of Filterjam's, so the app with the better star average is not the one people write more warmly about.

Comp 609 ships an update every 7 months, Filterjam every 22 months. The most recent releases landed on September 30, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Comp 609 | Filterjam |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (25 ratings)](https://appshunter.io/ios/app/comp-609/id1514569444/reviews) | **[5.0 (34 ratings)](https://appshunter.io/ios/app/filterjam/id1659941144/reviews)** |
| Number of ratings | 25 | **34** |
| Positive reviews | **87.5% of reviews** | 83.3% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 7 months** | Every 22 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 21 MB | 25 MB |
| Requires iOS | **10.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [RRS, OOO](https://appshunter.io/developer/1486125568) | [AudioThing Ltd.](https://appshunter.io/developer/1659941236) |

## 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 |


### Filterjam

[App page](https://appshunter.io/ios/app/filterjam/id1659941144)

This app offers a multiband resonant filter for creating unique audio effects. It divides input signals into four bands, allowing for various sonic manipulations from subtle enhancements to extreme sound mangling.

**Highlights:** Multiband resonant filtering, 4-band signal division, Sum or multiply band modes, Versatile sound shaping, Ringmod-like effects

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Comp 609 free?

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

### Is Filterjam free?

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

### Which has better reviews, Comp 609 or Filterjam?

Filterjam is rated higher. Comp 609 averages 4.8 out of 5 from 25 ratings, while Filterjam averages 5.0 from 34 ratings.

### Do Comp 609 or Filterjam have ads?

Neither Comp 609 nor Filterjam shows ads.

### Which is updated more often, Comp 609 or Filterjam?

Comp 609 ships an update every 7 months, and Filterjam every 22 months. Most recently, Comp 609 was updated on September 30, 2026 and Filterjam on October 1, 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.*