BLEASS Phaser vs Dub Filter
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
Dub Filter
This audio plugin emulates a legendary vintage high-pass filter, offering eleven frequency steps and controls for resonance, magnetism, character, dynamics, and artifacts. It includes LFO and Envelope Follower modulation sources for creative sound design.
- Vintage high-pass filter emulation
- Eleven frequency steps
- Adjustable resonance
- Magnetism, Character, Dynamics, Artifacts controls
- LFO modulation
- Envelope Follower modulation
- Standalone and AUv3 formats
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Dub Filter is a filter plugin modeled after King Tubby’s iconic Big Knob, a passive high-pass filter with eleven frequency steps from 70Hz to 7.5KHz. This filter defined the sound of the entire "roots" era of Jamaican music. On top of the main stepped Frequency knob and the Impedance (resonance), the filter also offers control over its behavior including Magnetism, Character, Dynamics, and Artefacts controls. We have also included two modulation sources, LFO and Envelope Follower, to enhance the creative possibilities of the plugin, from rhythmic pulsations to organic filter movements. Available as Standalone and AUv3.
Screenshots
Verdict
The clearest difference is price: BLEASS Phaser at $6.99 against Dub Filter's $14.99. On rating, review sentiment, ratings volume and update cadence 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 Dub Filter $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 Dub Filter. Both are backed by a comparable volume of ratings — 11 and 6 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
BLEASS Phaser ships an update every 21 months, Dub Filter every 15 months. The most recent releases landed on October 11, 2026 and October 1, 2026 respectively.
| Parameter | BLEASS Phaser | Dub Filter |
|---|---|---|
| Price | $6.99 — better | $14.99 |
| Rating | 5.0 (11 ratings) | 5.0 (6 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 11 — better | 6 |
| Update frequency | Every 21 months | Every 15 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 27 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | BLEASS | AudioThing Ltd. |
Customer experience
BLEASS Phaser
Dub Filter
In-app purchases
BLEASS Phaser
No in-app purchases
Dub Filter
No in-app purchases









