BLEASS Phaser vs MF
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BLEASS Phaser
This versatile audio effect plugin injects unique character into guitar, keyboard, vocal, and bass sounds. It offers a wide range of phasing effects, from subtle movement to atmospheric soundscapes, with an intuitive visual interface.
- Versatile phasing effect
- Subtle movement to atmospheric soundscapes
- Intuitive visualizer
- Two LFO modulation sources
- Tactile interface design
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More subtle than flanging and more colourful than chorus, phasing has long been a go-to effect for guitarists, keyboardists, vocalists and bassists who want to inject a touch of other-worldly character into their sound. No effects collection is complete without a phaser! BLEASS Phaser delivers a comprehensive and highly versatile phasing effect. Whether you’re looking for gentle movement, resonant swirls, or stunning atmospheric soundscapes, BLEASS Phaser can do it all. The plugin’s interface is dominated by a colourful and captivating visualisation that illustrates the notch frequencies that create the phasing effect. This detailed and intuitive display, coupled with BLEASS’ trademark tactile interface design, demystifies the entire phasing process, and makes working with BLEASS Phaser a joy. Phasers use all-pass filters to create frequency-specific phase changes within a sound. When this sound is overlaid on the original unprocessed sound, it creates notch filters at the cutoff frequencies of the all-pass filters. By using multiple all-pass filters, with frequencies that spread from a “centre” frequency determined by the first all-pass filter, a complex comb filtering effect is generated. Adding modulation to the filter frequencies leads to the characteristic sweeping, whooshing sound that phasing is known for. BLEASS Phaser has two LFO modulation sources. The first modulates the notch filter cutoff frequencies, the second modulates the spread of notch frequencies around the initial centre frequency. This allows the plugin to create classic repetitive phasing effects, as well as complex, ever-shifting notch patterns that add tons of sonic interest to a part. With BLEASS Phaser in your collection, you will never need another phaser! More information on bleass.com/phaser
MF
This app recreates a classic analog effects pedal, offering a 12-stage voltage-controlled phaser and a low-frequency oscillator. It's designed to process and modulate any audio source, from instruments to voice, providing a psychedelic and interactive sound experience.
- 12-stage voltage-controlled phaser
- Voltage-controlled LFO
- Recreation of classic analog pedal
- Processes various audio sources
- AUv3 effects plugin
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The MF-103S 12-Stage Phaser is a re-invention of Moog Music’s classic Moogerfooger MF-103 analog effects pedal. The MF-103 12-Stage Phaser, introduced in 1999, contained two complete modular functions: a 6-stage/12-stage voltage-controlled Phaser and a voltage-controlled wide-range Low Frequency Oscillator (LFO). Designed by Bob Moog and his engineering team, the MF-103 was a direct descendant of the original Moog modular synthesizers, adapted to process, modulate, and play with inputs ranging from guitar, voice, and synthesizer to any imaginable audio source. The MF-103 Stage Phaser has been meticulously recreated as the MF-103S, capturing not only the psychedelic enveloping sound of the original, but also the organic way in which the parameters interact to create a musical playing experience. The MF-103S is an AUv3 effects plug-in that requires a compatible host or DAW to function.
Screenshots
Verdict
The clearest difference is price: BLEASS Phaser at $6.99 against MF's $14.99. MF's advantage is update cadence (monthly vs every 21 months). On rating, review sentiment, ratings volume and ads 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 Phaser costs $6.99 and MF $14.99 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 — 5.0 for BLEASS Phaser against 5.0 for MF. Both are backed by a comparable volume of ratings — 11 and 7 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
BLEASS Phaser ships an update every 21 months, MF monthly. Both last shipped on October 24, 2026.
| Parameter | BLEASS Phaser | MF |
|---|---|---|
| Price | $6.99 — better | $14.99 |
| Rating | 5.0 (11 ratings) | 5.0 (7 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 11 — better | 7 |
| Update frequency | Every 21 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 | 11.0 |
| Further details — not scored | ||
| Size | 27 MB | 43 MB |
| Age rating | 4+ | 4+ |
| Developer | BLEASS | Moog Music Inc. |
Customer experience
BLEASS Phaser
MF
In-app purchases
BLEASS Phaser
No in-app purchases
MF
No in-app purchases









