# Filterstation2 vs BLEASS Phase Mutant

The clearest difference is update cadence: BLEASS Phase Mutant at every 3 weeks against Filterstation2's every 19 months. BLEASS Phase Mutant also leads on rating (4.7 vs 4.4). Filterstation2's advantage is price ($1.99 vs $4.99). On review sentiment, ratings volume, ads and in-app purchases there is nothing between them.

Filterstation2 costs $1.99 and BLEASS Phase Mutant $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

BLEASS Phase Mutant holds the better App Store score, 4.7 against 4.4. Both are backed by a comparable volume of ratings — 18 and 27 respectively. Written reviews split almost evenly too, at 75% and 75% positive.

Filterstation2 ships an update every 19 months, BLEASS Phase Mutant every 3 weeks. The most recent releases landed on November 11, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Filterstation2 | BLEASS Phase Mutant |
| --- | --- | --- |
| Price | **$1.99** | $4.99 |
| Rating | [4.4 (18 ratings)](https://appshunter.io/ios/app/filterstation2/id1329509841/reviews) | **[4.7 (27 ratings)](https://appshunter.io/ios/app/bleass-phase-mutant/id1611006344/reviews)** |
| Number of ratings | 18 | **27** |
| Positive reviews | 75.0% of reviews | 75.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 19 months | **Every 3 weeks** |
| Monetization | Paid | Paid |
| Size | 29 MB | 23 MB |
| Requires iOS | 12.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Audio Damage, Inc.](https://appshunter.io/developer/1248448317) | [BLEASS](https://appshunter.io/developer/1220444177) |

## 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


### BLEASS Phase Mutant

[App page](https://appshunter.io/ios/app/bleass-phase-mutant/id1611006344)

This music app applies frequency modulation to any audio source, creating complex harmonic distortions and expressive tonal variations. It offers unique modern effects for vocals, basses, leads, and percussion, with advanced modulation options.

**Highlights:** Frequency Modulation (FM) synthesis for audio sources, Modulate input signal with an oscillator or vice versa, Complex harmonic distortions and tonal variations, Pitch-tracking oscillator with adjustable waveforms, Stereo field spreading via phase offset, 2 LFOs, Envelope Follower, and Motion Sequencer, Modern effects for vocals, basses, leads, and percussion

**In-app purchases:** none


## Frequently asked questions

### Is Filterstation2 free?

Filterstation2 costs $1.99, with no in-app purchases.

### Is BLEASS Phase Mutant free?

BLEASS Phase Mutant costs $4.99, with no in-app purchases.

### Which has better reviews, Filterstation2 or BLEASS Phase Mutant?

BLEASS Phase Mutant is rated higher. Filterstation2 averages 4.4 out of 5 from 18 ratings, while BLEASS Phase Mutant averages 4.7 from 27 ratings.

### Do Filterstation2 or BLEASS Phase Mutant have ads?

Neither Filterstation2 nor BLEASS Phase Mutant shows ads.

### Which is updated more often, Filterstation2 or BLEASS Phase Mutant?

Filterstation2 ships an update every 19 months, and BLEASS Phase Mutant every 3 weeks. Most recently, Filterstation2 was updated on November 11, 2026 and BLEASS Phase Mutant on November 7, 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.*