# RF vs Filterstation2

The clearest difference is update cadence: RF at every 8 months against Filterstation2's every 19 months. RF also leads on price ($2.99 vs $4.99) and iOS requirement (9.0 vs 12.0). Filterstation2's advantage is review sentiment (75% vs 67%). On rating, ratings volume, ads and in-app purchases there is nothing between them.

RF costs $2.99 and Filterstation2 $4.99 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 — 4.6 for RF against 4.4 for Filterstation2. Both are backed by a comparable volume of ratings — 12 and 18 respectively. Written reviews are what separate them: 67% of RF's written reviews are positive against 75% of Filterstation2's.

RF ships an update every 8 months, Filterstation2 every 19 months. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | RF | Filterstation2 |
| --- | --- | --- |
| Price | **$2.99** | $4.99 |
| Rating | **[4.6 (12 ratings)](https://appshunter.io/ios/app/rf-1-reverb/id1097763239/reviews)** | [4.4 (18 ratings)](https://appshunter.io/ios/app/filterstation2/id1329509841/reviews) |
| Number of ratings | 12 | **18** |
| Positive reviews | 66.7% of reviews | **75.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 8 months** | Every 19 months |
| Monetization | Paid | Paid |
| Size | 15 MB | 29 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kai Aras](https://appshunter.io/developer/370820899) | [Audio Damage, Inc.](https://appshunter.io/developer/1248448317) |

## What reviewers say

### RF

[App page](https://appshunter.io/ios/app/rf-1-reverb/id1097763239)

This app offers a versatile collection of algorithmic reverbs for creating diverse soundscapes, from intimate rooms to expansive modulated spaces. It features multiple reverb programs, extensive tweakable controls, and seamless integration with various audio hosts and interfaces.

**Highlights:** Multiple reverb programs, Continuously variable size, Variable pre-delay, Diffusion and damping controls, Modulation section, AudioUnitV3, Inter-App Audio, Audiobus support

**Features:** Vision Pro support

**In-app purchases:** none


### Filterstation2

[App page](https://appshunter.io/ios/app/filterstation2/id1329509841)

This app offers a versatile dual filter effect for music production, inspired by classic hardware. It features twelve filter algorithms, an envelope follower, and multiple operating modes for creative sound shaping. Its user-friendly interface and resizable GUI make it a powerful tool for producers.

**Highlights:** Twelve filter algorithms, Envelope follower with sidechain, VCA mode for tremolo/gate, LFO with tempo sync, Serial, parallel, and stereo modes, Resizable GUI, Cross-platform preset manager

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is RF free?

RF costs $2.99, with no in-app purchases.

### Is Filterstation2 free?

Filterstation2 costs $4.99, with no in-app purchases.

### Which has better reviews, RF or Filterstation2?

RF is rated higher. RF averages 4.6 out of 5 from 12 ratings, while Filterstation2 averages 4.4 from 18 ratings.

### Do RF or Filterstation2 have ads?

Neither RF nor Filterstation2 shows ads.

### Which is updated more often, RF or Filterstation2?

RF ships an update every 8 months, and Filterstation2 every 19 months. Most recently, RF was updated on October 26, 2026 and Filterstation2 on October 24, 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.*