BLEASS Phase Mutant vs Big Swarma
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BLEASS Phase Mutant
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.
- 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
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Developing BLEASS Omega gave us the perfect opportunity to take a deep dive into the fascinating sonic capabilities of FM synthesis, and this sparked an innovative idea: A plugin that can apply the principles of frequency modulation to literally any source material. The result is BLEASS Phase Mutant. Where existing phase distortion plugins create their effect by using an audio signal to modulate itself, BLEASS Phase Mutant takes things to an entirely new level with the addition of an oscillator that can modulate the input signal or be modulated by it. This allows BLEASS Phase Mutant to fully harness FM’s ability to create complex and colourful harmonic distortions, achingly expressive tonal variations, and fascinating sonic hooks. BLEASS Phase Mutant’s oscillator tracks the input signal’s pitch, or can be set to a factor of that input pitch. It can also produce a range of different waveforms, all of which can be spread across the stereo field by offsetting the phase of left and right channels. In combination, these abilities open up a whole new universe of unique, modern-sounding effects that are perfect for vocals, basses, arpeggios and leads. You’re going to love what BLEASS Phase Mutant can do to your drum and percussion parts too! BLEASS Phase Mutant also offers 2 LFOs, an Envelope Follower and a Motion Sequencer with multiple modulation destinations, which you can easily visualize. BLEASS Phase Mutant is also available for Mac & Windows. Find more information and tutorials on https://www.bleass.com/phasemutant/
Big Swarma
Transform audio into massive, detuned swarms with up to 16 voices. Features adjustable detune, stereo width, and pitch modulation for unique textures. An intense feedback circuit and dual MS20-style filters offer further sound sculpting capabilities.
- Voice multiplier up to 16 voices
- Adjustable detune, stereo width, pitch modulation
- Intense feedback circuit
- Dual MS20-style filters (HPF/LPF)
- Resonance and master cutoff controls
- Raw analog character
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Big Swarma is a powerful voice multiplier and feedback unit designed to transform any audio into massive, detuned swarms. Multiply your signal up to 16 voices with adjustable detune, stereo width, and pitch modulation for lush unisons, aggressive textures, or shimmering drones. Push it further with an intense feedback circuit capable of self-oscillation and FM harmonic mayhem. Sculpt your swarm with dual MS20-style filters (HPF and LPF), each with dedicated resonance controls and a master cutoff knob. Big Swarma delivers a raw, analog character driven by aggressive feedback and wild modulation, for a sound that hits you in the face.
Screenshots
Verdict
The clearest difference is price: BLEASS Phase Mutant at $4.99 against Big Swarma's $14.99. BLEASS Phase Mutant also leads on ratings volume (27 vs 6) and iOS requirement (11.0 vs 14.0). Big Swarma's advantage is review sentiment (100% vs 75%) and rating (5.0 vs 4.7). On ads, in-app purchases, monetization model and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
BLEASS Phase Mutant costs $4.99 and Big Swarma $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Big Swarma holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 27 and 6 respectively. Written reviews point the same way: 75% of BLEASS Phase Mutant's written reviews are positive against 100% of Big Swarma's.
BLEASS Phase Mutant ships an update every 3 weeks, Big Swarma every 10 days. The most recent releases landed on November 7, 2026 and October 30, 2026 respectively.
| Parameter | BLEASS Phase Mutant | Big Swarma |
|---|---|---|
| Price | $4.99 — better | $14.99 |
| Rating | 4.7 (27 ratings) | 5.0 (6 ratings) — better |
| Positive reviews | 75.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 27 — better | 6 |
| Update frequency | Every 3 weeks | Every 10 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 23 MB | 20 MB |
| Age rating | 4+ | 4+ |
| Developer | BLEASS | Audiority Srl |
Customer experience
BLEASS Phase Mutant
Big Swarma
In-app purchases
BLEASS Phase Mutant
No in-app purchases
Big Swarma
No in-app purchases
Questions
Is BLEASS Phase Mutant free?
Is Big Swarma free?
Which has better reviews, BLEASS Phase Mutant or Big Swarma?
Do BLEASS Phase Mutant or Big Swarma have ads?
Which is updated more often, BLEASS Phase Mutant or Big Swarma?
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