BandDelay vs BLEASS Phase Mutant
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BandDelay
This app offers a unique approach to sound design by splitting audio into 27 bands, applying individual delay effects to each. It allows for real-time manipulation of delay times, levels, and feedback, enabling complex rhythmic and sonic variations.
- 27 band realtime multiband delay
- Frequency dependent level, delay time, and feedback
- Tempo syncable delay times
- Meta parameter for rhythm variations
- AudioUnit for hosts like Garageband
- Ableton Link compatible
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The multi-band delay BandDelay is an exciting tool for sound design and loop manipulation in realtime. In contrast to common delay processors BandDelay splits the frequency spectrum of the input signal into 27 bands and applies a separate delay unit to each band. The delay times can be synchronised to the host tempo generating nearly infinite rhythmical and sonic variations of the input signal. For each of the delay bands you can specify the delay time, the level and the feedback amount separately. These parameter changes can even be automised in realtime for glitch free rhythmical morphings. A few high level parameters let you change the delay times and feedbacks of all delays with the turn of a single knob. - 27 band realtime multiband delay. - Frequency dependent level, delay time and feedback - Linear phase precision filters for maximal transparency - Tempo syncable delay times up to 6 seconds. - Meta parameter for quick access to rhythm variations - Effect AudioUnit for use in hosts like Garageband, Cubasis, AUM and others - Full AU parameter automation - Ableton Link compatible - stand alone / Audiobus 3 / IAA
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/
Screenshots
Verdict
The clearest difference is update cadence: BLEASS Phase Mutant at every 3 weeks against BandDelay's every 8 months. BLEASS Phase Mutant also leads on rating (4.7 vs 4.4). BandDelay's advantage is review sentiment (100% vs 75%) and price ($3.99 vs $8.99). On ratings volume, ads, in-app purchases and monetization model 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
BandDelay costs $3.99 and BLEASS Phase Mutant $8.99 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 — 11 and 27 respectively. Written reviews complicate that: 100% of BandDelay's written reviews are positive against 75% of BLEASS Phase Mutant's, so the app with the better star average is not the one people write more warmly about.
BandDelay ships an update every 8 months, BLEASS Phase Mutant every 3 weeks. The most recent releases landed on July 5, 2026 and September 20, 2026 respectively.
| Parameter | BandDelay | BLEASS Phase Mutant |
|---|---|---|
| Price | $3.99 — better | $8.99 |
| Rating | 4.4 (11 ratings) | 4.7 (27 ratings) — better |
| Positive reviews | 100.0% of reviews — better | 75.0% of reviews |
| Number of ratings | 11 | 27 — better |
| Update frequency | Every 8 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Best chart rank | #199 — better | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 19 MB | 23 MB |
| Age rating | 4+ | 4+ |
| Developer | Harry Gohs | BLEASS |
Customer experience
BandDelay
BLEASS Phase Mutant
In-app purchases
BandDelay
No in-app purchases
BLEASS Phase Mutant
No in-app purchases
Questions
Is BandDelay free?
Is BLEASS Phase Mutant free?
Which has better reviews, BandDelay or BLEASS Phase Mutant?
Do BandDelay or BLEASS Phase Mutant have ads?
Which is updated more often, BandDelay or BLEASS Phase Mutant?
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