# RRS CL1 vs Filterjam

The clearest difference is rating: Filterjam at 5.0 against RRS CL1's 4.5. Filterjam also leads on in-app purchases (none vs 1). RRS CL1's advantage is update cadence (every 2 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. RRS CL1 sells 1 one-off in-app purchase. Filterjam asks for nothing beyond the download.

Filterjam holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 28 and 34 respectively. Written reviews point the same way: 77% of RRS CL1's written reviews are positive against 83% of Filterjam's.

RRS CL1 ships an update every 2 months, Filterjam every 22 months. The most recent releases landed on October 1, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | RRS CL1 | Filterjam |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (28 ratings)](https://appshunter.io/ios/app/rrs-cl1/id1639305828/reviews) | **[5.0 (34 ratings)](https://appshunter.io/ios/app/filterjam/id1659941144/reviews)** |
| Number of ratings | 28 | **34** |
| Positive reviews | 76.9% of reviews | **83.3% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 22 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 19 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

### RRS CL1

[App page](https://appshunter.io/ios/app/rrs-cl1/id1639305828)

This audio effect plugin offers dynamic range compression with unique sonic coloration through saturation and dithering. It includes a limiter, equalizer, and advanced features like parallel compression and M/S mode for detailed audio manipulation.

**Highlights:** Dynamic range compression, Saturation with even harmonics, Dithering for 'air' effect, Limiting module for peak control, Mid-range equalizer, Parallel compression, M/S operational mode

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| RRS CL1 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 RRS CL1 free?

RRS CL1 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, RRS CL1 or Filterjam?

Filterjam is rated higher. RRS CL1 averages 4.5 out of 5 from 28 ratings, while Filterjam averages 5.0 from 34 ratings.

### Do RRS CL1 or Filterjam have ads?

Neither RRS CL1 nor Filterjam shows ads.

### Which is updated more often, RRS CL1 or Filterjam?

RRS CL1 ships an update every 2 months, and Filterjam every 22 months. Most recently, RRS CL1 was updated on October 1, 2026 and Filterjam on October 15, 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.*