Comparison

Attack Softener vs BLEASS Phase Mutant

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Attack Softener

This audio effect plugin removes the initial attack transient of notes, allowing for synth-like sounds from various instruments. It functions like a transient shaper but can silence pick sounds for fast music, enabling clean solo tones without distortion.

Highlights
  • Removes note attack transients
  • Creates synth-like instrument sounds
  • Functions like a transient shaper
  • Silences pick sounds for fast music
  • Enables clean solo tones without distortion
  • Preserves original instrument tone
Features
Read full description

Attack Softener is an effect that fades the beginning of each note you play to remove the attack transient. This allows you to make synth-like sounds with almost any instrument (guitar, bass, piano, etc.) HOW DOES IT WORK? It functions similarly to a transient shaper. Unlike a transient shaper though, it can bring the volume of attack sounds down to near zero quickly enough to silence the pick sound of an electric guitar in very fast music. WHAT IS IT USED FOR? It works with any instrument but we really like to use it with electric guitar. We recommend the following effect chain: Guitar -> Attack Softener -> Compressor -> Reverb. The combination of the attack softener and compressor is especially nice because the compressor keeps the volume balanced when playing clean solos but heavy compression intensifies the pick click noise, making it inappropriate for many styles of music. With the Attack Softener placed before the compressor you can get a nice, even clean solo tone that doesn't have punchy hard pick sounds. This allows you to play solos with a clean tone, where normally you would have to use distortion or overdrive to get sustain, now you can get that distorted "light touch" feel without the harshness of distortion. MORE TECHNICAL EXPLANATION OF HOW IT WORKS A transient shaper creates two volume envelopes. One rises immediately and falls slowly; the other rises slowly and falls slowly. The difference between these two envelopes indicates how far the volume should be reduced to silence the attack. However, changing the volume very quickly usually causes noise in the sound because of volume changes that happen naturally during the sustain part of the notes. This plugin is different from ordinary transient shapers because it combines several new methods to help it differentiate between real attack transients and other volume changes, and it uses dynamic filters that adjust the response time to ensure that it can respond quickly without introducing audible clicking sounds when the volume changes. IS THERE ANY OTHER EFFECT LIKE THIS OR IS IT SOMETHING NEW? EHX makes a pedal called Attack / Decay that does something similar. There are several other pedals that also do swell effects. All of them are designed for long fades and slow playing except the EHX one, which can operate faster by separating each new note onto its own audio channel using spectral processing. That spectral note separation distorts the tone signficiantly. This Attack Softener plugin is the only effect we are aware of that handles fast picking while preserving the original tone of the instrument.

About

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.

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
Read full description

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/

Screenshots

Attack Softener4 screens
BLEASS Phase Mutant4 screens

Verdict

The call

The clearest difference is rating: BLEASS Phase Mutant at 4.7 against Attack Softener's 4.3. BLEASS Phase Mutant also leads on review sentiment (75% vs 50%). Attack Softener's advantage is price ($5.99 vs $8.99). On ratings volume, update cadence, ads and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Attack Softener costs $5.99 and BLEASS Phase Mutant $8.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

BLEASS Phase Mutant holds the better App Store score, 4.7 against 4.3. Both are backed by a comparable volume of ratings — 10 and 27 respectively. Written reviews point the same way: 50% of Attack Softener's written reviews are positive against 75% of BLEASS Phase Mutant's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on September 11, 2026 and September 20, 2026 respectively.

Scorecard3 real differences · 7 level
Attack Softener versus BLEASS Phase Mutant: the parameters behind the verdict, then further details
ParameterAttack SoftenerBLEASS Phase Mutant
Price$5.99 — better$8.99
Rating4.3 (10 ratings)4.7 (27 ratings) — better
Positive reviews50.0% of reviews75.0% of reviews — better
Number of ratings1027 — better
Update frequencyEvery 3 weeksEvery 3 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.011.0 — better
Further details — not scored
Size13 MB23 MB
Age rating4+4+
DeveloperBlue Mangoo Consulting Company LimitedBLEASS

Customer experience

Attack Softener

All ratings10 ratings
Positive80.0%
Neutral0.0%
Negative20.0%
Written reviews4 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

BLEASS Phase Mutant

All ratings27 ratings
Positive92.6%
Neutral0.0%
Negative7.4%
Written reviews4 reviews
Positive75.0%
Neutral25.0%
Negative0.0%

In-app purchases

None

Attack Softener

No in-app purchases

None

BLEASS Phase Mutant

No in-app purchases

Questions

Is Attack Softener free?
Attack Softener costs $5.99, with no in-app purchases.
Is BLEASS Phase Mutant free?
BLEASS Phase Mutant costs $8.99, with no in-app purchases.
Which has better reviews, Attack Softener or BLEASS Phase Mutant?
BLEASS Phase Mutant is rated higher. Attack Softener averages 4.3 out of 5 from 10 ratings, while BLEASS Phase Mutant averages 4.7 from 27 ratings.
Do Attack Softener or BLEASS Phase Mutant have ads?
Neither Attack Softener nor BLEASS Phase Mutant shows ads.
Which is updated more often, Attack Softener or BLEASS Phase Mutant?
Attack Softener ships an update every 3 weeks, and BLEASS Phase Mutant every 3 weeks. Most recently, Attack Softener was updated on September 11, 2026 and BLEASS Phase Mutant on September 20, 2026.

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