# Resonator Audio Unit vs Filterjam

The clearest difference is price: Filterjam at Free against Resonator Audio Unit's $2.99. Filterjam also leads on ratings volume (34 vs 3). Resonator Audio Unit's advantage is iOS requirement (10 vs 14.0). On rating, update cadence, ads and in-app purchases there is nothing between them.

Filterjam is free to download; Resonator Audio Unit costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for Resonator Audio Unit against 5.0 for Filterjam. That said, the two scores are not equally well evidenced: Filterjam has 34 ratings behind it against 3, so its average is the more settled of the two.

Resonator Audio Unit ships an update every 38 months, Filterjam every 22 months. The most recent releases landed on September 6, 2026 and August 31, 2026 respectively.

## The numbers

| Metric | Resonator Audio Unit | Filterjam |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/resonator-audio-unit/id1225597875/reviews) | [5.0 (34 ratings)](https://appshunter.io/ios/app/filterjam/id1659941144/reviews) |
| Number of ratings | 3 | **34** |
| Positive reviews | — | 83.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 38 months | **Every 22 months** |
| Monetization | Paid | **Free** |
| Size | 10 MB | 25 MB |
| Requires iOS | **10** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Aleksandar Mlazev](https://appshunter.io/developer/1093798140) | [AudioThing Ltd.](https://appshunter.io/developer/1659941236) |

## What reviewers say

### Resonator Audio Unit

[App page](https://appshunter.io/ios/app/resonator-audio-unit/id1225597875)

This audio effect plugin generates natural resonances to add warmth and fullness to instruments or recordings. It offers controls for acoustic body characteristics and includes an additional reverb effect for standalone use. The app utilizes unique, realistic algorithms for its sound shaping capabilities.

**Highlights:** Natural sounding resonances, Acoustic body thickness and size control, Resonance amount control, Additional reverb effect, Standalone app mode with Efx on/off

**Features:** Vision Pro support

**In-app purchases:** none


### 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 Resonator Audio Unit free?

Resonator Audio Unit costs $2.99, with no in-app purchases.

### Is Filterjam free?

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

### Which has better reviews, Resonator Audio Unit or Filterjam?

Resonator Audio Unit and Filterjam are both rated 5.0 out of 5 on the App Store, from 3 and 34 ratings respectively.

### Do Resonator Audio Unit or Filterjam have ads?

Neither Resonator Audio Unit nor Filterjam shows ads.

### Which is updated more often, Resonator Audio Unit or Filterjam?

Resonator Audio Unit ships an update every 38 months, and Filterjam every 22 months. Most recently, Resonator Audio Unit was updated on September 6, 2026 and Filterjam 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.*