Resonator Audio Unit vs Filterjam
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Resonator Audio Unit
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.
- Natural sounding resonances
- Acoustic body thickness and size control
- Resonance amount control
- Additional reverb effect
- Standalone app mode with Efx on/off
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Resonator Audio Unit is an audio effect that creates natural sounding resonances in an acoustic body. That will add warmth and fullness to the tone of any instrument or to your record. You can control the acoustic body thickness, size and the amount of resonances. There is also additional reverb effect so you can add reflections to the sound of the resonator. This is useful if you use the app as a standalone to get your whole sound and play on your instrument via iRig or similar adapter. The app uses realistic and innovative algorithms created by me that you can not find in other software. Features of the Resonator Audio Unit: - warm and natural sounding resonances - acoustic body controls for thickness and size - resonances amount control - additional reverb effect - Efx on/off button (available when used as a stand alone app)
Filterjam
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.
- Multiband resonant filtering
- 4-band signal division
- Sum or multiply band modes
- Versatile sound shaping
- Ringmod-like effects
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Filterjam is a multi-band resonant filter delivering weird ringmod-like filtered sounds. The input signal is divided into 4 bands that are then summed or multiplied together according to the selected mode. Filterjam can be very harsh or gentle, it can add brightness or depth to synth sounds, but it can also completely mangle acoustic sources.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Resonator Audio Unit | Filterjam |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 5.0 (3 ratings) | 5.0 (34 ratings) |
| Positive reviews | — | 83.3% of reviews |
| Number of ratings | 3 | 34 — better |
| Update frequency | Every 38 months | Every 22 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 10 — better | 14.0 |
| Further details — not scored | ||
| Size | 10 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | Aleksandar Mlazev | AudioThing Ltd. |
Customer experience
Resonator Audio Unit
Filterjam
In-app purchases
Resonator Audio Unit
No in-app purchases
Filterjam
No in-app purchases
