# Filterstation2 vs GRFX

The clearest difference is update cadence: GRFX at monthly against Filterstation2's every 19 months. Filterstation2's advantage is price ($4.99 vs $6.99) and iOS requirement (12.0 vs 17.0). On rating, review sentiment, ratings volume and ads there is nothing between them.

Filterstation2 costs $4.99 and GRFX $6.99 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 — 4.5 for Filterstation2 against 4.6 for GRFX. Both are backed by a comparable volume of ratings — 19 and 11 respectively. Written reviews are what separate them: 75% of Filterstation2's written reviews are positive against 78% of GRFX's.

Filterstation2 ships an update every 19 months, GRFX monthly. The most recent releases landed on October 11, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Filterstation2 | GRFX |
| --- | --- | --- |
| Price | **$4.99** | $6.99 |
| Rating | [4.5 (19 ratings)](https://appshunter.io/ios/app/filterstation2/id1329509841/reviews) | **[4.6 (11 ratings)](https://appshunter.io/ios/app/grfx-granular-effects/id6745477065/reviews)** |
| Number of ratings | **19** | 11 |
| Positive reviews | 75.0% of reviews | **77.8% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 19 months | **Monthly** |
| Monetization | Paid | Paid |
| Size | 29 MB | 117 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Audio Damage, Inc.](https://appshunter.io/developer/1248448317) | [Imaginando Lda](https://appshunter.io/developer/895445015) |

## What reviewers say

### 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


### GRFX

[App page](https://appshunter.io/ios/app/grfx-granular-effects/id6745477065)

Transform ordinary audio into unique sonic textures, evolving soundscapes, and rhythmic glitches. This app offers precise control over sound manipulation with a unique pitch controller, multiple LFOs, and a flexible multi-effect chain. Create complex and immersive audio transformations in real-time.

**Highlights:** Granular engine for textures and rhythms, Harmonic Triangle pitch controller, Multi-effect chain with probabilistic routing, Four self-modulating LFOs, Real-time audio sculpting, AUv3 plugin and standalone app

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Filterstation2 free?

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

### Is GRFX free?

GRFX costs $6.99, with no in-app purchases.

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

GRFX is rated higher. Filterstation2 averages 4.5 out of 5 from 19 ratings, while GRFX averages 4.6 from 11 ratings.

### Do Filterstation2 or GRFX have ads?

Neither Filterstation2 nor GRFX shows ads.

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

Filterstation2 ships an update every 19 months, and GRFX monthly. Most recently, Filterstation2 was updated on October 11, 2026 and GRFX on October 12, 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.*