# DubFilter vs RRS Passive EQ Collection

DubFilter and RRS Passive EQ Collection both sit at 4.7 stars, but that hides the real split: 100% of RRS Passive EQ Collection's written reviews are positive against 73% of DubFilter's. RRS Passive EQ Collection also leads on update cadence (every 2 months vs every 6 months) and iOS requirement (10.0 vs 17.0). DubFilter's advantage is ratings volume (71 vs 16). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. DubFilter sells 1 one-off in-app purchase and RRS Passive EQ Collection sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.7 for DubFilter against 4.8 for RRS Passive EQ Collection. Both are backed by a comparable volume of ratings — 71 and 16 respectively. Written reviews are what separate them: 73% of DubFilter's written reviews are positive against 100% of RRS Passive EQ Collection's.

DubFilter ships an update every 6 months, RRS Passive EQ Collection every 2 months. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | DubFilter | RRS Passive EQ Collection |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (71 ratings)](https://appshunter.io/ios/app/dubfilter/id979648058/reviews) | **[4.8 (16 ratings)](https://appshunter.io/ios/app/rrs-passive-eq-collection/id1584945520/reviews)** |
| Number of ratings | **71** | 16 |
| Positive reviews | 73.3% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 months** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 12 MB | 22 MB |
| Requires iOS | 17.0 | **10.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Amazing Noises](https://appshunter.io/developer/903336421) | [RRS, OOO](https://appshunter.io/developer/1486125568) |

## What reviewers say

### DubFilter

[App page](https://appshunter.io/ios/app/dubfilter/id979648058)

This app provides a powerful dual filter with resonance and an exclusive overlap parameter. It also features a redesigned stereo sample player with LFO and scrubbing, along with extensive MIDI and file management capabilities.

**Highlights:** Dual low-pass/high-pass filter, Resonance and Overlap parameter, Stereo sample player with LFO, Scrubbing capabilities, Audiobus and Inter-App Audio support, MIDI control and file management, Preset morphing pad

**Features:** macOS Compatibility, Family Sharing, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Audio Unit Plugin Support | $1.99 | one-time |


### RRS Passive EQ Collection

[App page](https://appshunter.io/ios/app/rrs-passive-eq-collection/id1584945520)

This app offers a collection of vintage-inspired equalizers, combining three classic models into a single, full-featured audio plugin. It provides detailed control over tone shaping for music production and mixing. A demo version is available with limited playtime.

**Highlights:** Combines EQP-1A, MEQ-5, and HLF-3C equalizers, Standalone and AUv3 plugin support, Modeled vintage analog saturation, Undo/Redo functionality, A/B comparison, Macro controllers, Built-in Gain Match

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| RRS Passive EQ Collection Full | $8.99 | one-time |


## Frequently asked questions

### Is DubFilter free?

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

### Is RRS Passive EQ Collection free?

RRS Passive EQ Collection is free to download, with in-app purchases available.

### Which has better reviews, DubFilter or RRS Passive EQ Collection?

RRS Passive EQ Collection is rated higher. DubFilter averages 4.7 out of 5 from 71 ratings, while RRS Passive EQ Collection averages 4.8 from 16 ratings.

### Do DubFilter or RRS Passive EQ Collection have ads?

Neither DubFilter nor RRS Passive EQ Collection shows ads.

### Which is updated more often, DubFilter or RRS Passive EQ Collection?

DubFilter ships an update every 6 months, and RRS Passive EQ Collection every 2 months. Most recently, DubFilter was updated on October 24, 2026 and RRS Passive EQ Collection on October 27, 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.*