# Filterjam vs RRS Ivoks

The clearest difference is rating: Filterjam at 5.0 against RRS Ivoks's 4.4. Filterjam also leads on in-app purchases (none vs 1) and review sentiment (83% vs 63%). RRS Ivoks's advantage is update cadence (fortnightly vs every 22 months) and iOS requirement (10.0 vs 14.0). On price, ratings volume, ads and device support there is nothing between them.

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

Filterjam holds the better App Store score, 5.0 against 4.4. Both are backed by a comparable volume of ratings — 34 and 46 respectively. Written reviews point the same way: 83% of Filterjam's written reviews are positive against 63% of RRS Ivoks's.

Filterjam ships an update every 22 months, RRS Ivoks fortnightly. The most recent releases landed on October 15, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Filterjam | RRS Ivoks |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (34 ratings)](https://appshunter.io/ios/app/filterjam/id1659941144/reviews)** | [4.4 (46 ratings)](https://appshunter.io/ios/app/rrs-ivoks/id6443504248/reviews) |
| Number of ratings | 34 | **46** |
| Positive reviews | **83.3% of reviews** | 63.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 22 months | **Fortnightly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 25 MB | 19 MB |
| Requires iOS | 14.0 | **10.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [AudioThing Ltd.](https://appshunter.io/developer/1659941236) | [RRS, OOO](https://appshunter.io/developer/1486125568) |

## What reviewers say

### 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


### RRS Ivoks

[App page](https://appshunter.io/ios/app/rrs-ivoks/id6443504248)

This app emulates analog synthesizers, offering a range of sound shaping tools including oscillators, filters, and amplifiers. It supports AUv3 hosting for integration with music production apps and provides extensive MIDI control.

**Highlights:** Analog Emulation, AUv3 Compatible, Dual Oscillators, Filter Block with ADSR, Amplifier Block with ADSR, Modulation (LFO) Controls, MIDI CC Implementation

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| RRS Ivoks Unlimited | $8.99 | one-time |


## Frequently asked questions

### Is Filterjam free?

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

### Is RRS Ivoks free?

RRS Ivoks is free to download, with in-app purchases available.

### Which has better reviews, Filterjam or RRS Ivoks?

Filterjam is rated higher. Filterjam averages 5.0 out of 5 from 34 ratings, while RRS Ivoks averages 4.4 from 46 ratings.

### Do Filterjam or RRS Ivoks have ads?

Neither Filterjam nor RRS Ivoks shows ads.

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

Filterjam ships an update every 22 months, and RRS Ivoks fortnightly. Most recently, Filterjam was updated on October 15, 2026 and RRS Ivoks on October 21, 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.*