Dub Filter vs MetroCore
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
MetroCore
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- Sample-accurate metronome - Audio-thread scheduling for rock-solid timing - Clear downbeat and accent distinction - Click with your finger for adjust the tempo rate - Multiple sound types - Flexible time signatures and subdivisions - Studio, Stage, and Night visual themes - Background playback and lock screen support - Designed for musicians, not demos. Powered by Apple Audio Engine Technology, MetroCore runs all timing logic on the audio thread, stable and accurate. Designed for real-world use, MetroCore adapts to studio, stage, and night environments with carefully tuned visual times and clear accent differentiation. No gimmicks, No distractions. Just precise time at the core of your music.
Screenshots
Verdict
The clearest difference is price: MetroCore at $2.99 against Dub Filter's $14.99. Dub Filter's advantage is iOS requirement (12.0 vs 17.6). On ads, in-app purchases 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
Dub Filter costs $14.99 and MetroCore $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Dub Filter | MetroCore |
|---|---|---|
| Price | $14.99 | $2.99 — better |
| Rating | 5.0 (6 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 6 — better | — |
| Update frequency | Every 15 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 21 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | AudioThing Ltd. | Fuxing Xue |
In-app purchases
Dub Filter
No in-app purchases
MetroCore
No in-app purchases









