Stereo Width Control vs TB DualVCF
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Stereo Width Control
This audio plugin allows precise control over the stereo width of audio across four adjustable frequency bands. It's designed for mastering engineers to manage bass frequencies while maintaining a wide stereo image in other ranges. Features include solo controls for each band and a visual vectorscope.
- Adjustable stereo width per frequency band
- Four independent frequency bands
- Solo control for each band
- Stereo vectorscope visualization
- Runs inside host apps like GarageBand
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Stereo Width Control is an Audio Unit plugin that allows you to increase or decrease the stereo width of 4 adjustable frequency bands. Mastering engineers use it to ensure that the bass frequencies of the kick drum and bass instruments stay tightly focused in the centre channel while a keeping spacious stereo image in the mid range frequencies. Stereo Width Control operates with your choice of 1 to 4 separate bands. Each band has a solo control, used to audition that band on its own while you adjust its frequency range and stereo width setting. In the lower right is a stereo vectorscope graph that is helpful for visualising the volume and stereo width of your tracks. NOTE: This app is an Audio Unit plugin that runs inside of host apps such as GarageBand. It does not process audio in standalone mode.
TB DualVCF
This app offers a dual analog filter plug-in for music production, providing a wide range of vintage filter models to shape sound. It features intuitive modulation and envelope followers for creative audio exploration, compatible with AUv3 hosts.
- Dual analog filter sections
- Dozens of vintage filter models
- Envelope followers
- Intuitive modulation editor
- AUv3 plug-in compatibility
- Real-time audio processing
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Dual VCF - the ultimate dynamic filtering AUv3 plug-in! Dual VCF adds motion, shape, and colour. It produces evolving rhythmic movement and complex dynamic filter shapes. It contains dozens of analog filter models with that sought-after sound of the 70s, 80s and 90s. Combined with envelope followers and intuitive modulation editors, it provides almost infinite possibilities for creative aural exploration. Dual VCF features two filter sections, each supporting dozens of low-pass, high-pass and band-pass filter types. Every type is painstakenly modeled after analog filter types found in analog gear, analog synthesizers, and alike, including non-linear filter behavior. Dial in that characterstic 70s, 80s or 90s filter to add some analog flavor to your tracks! Each filter's cut-off frequency and resonance can be sequenced with an intuitive, free-running or beat-synced modulation editor. Seamlessly switch between sine, triangle, noise, or user-defined modulation waveforms. In addition, these parameters can also be modulated with the built-in envelope follower. The ToneBoosters DualVCF app captures the microphone (or external sound card) input and processes the signals in real time. To use it as a plug-in, use an AUv3-compatible host app such as Steinberg Cubasis, Apple Garageband, Audio Evolution Mobile Studio, Auria, AUM, or others. ToneBoosters DualVCF will appear in the list of Audio Unit extensions for effect plug-ins. How to use DualVCF as AUv3 plugin in a host program, start your favourite AUv3 host app (Steinberg Cubasis, Apple Garageband, Audio Evolution Mobile Studio, Auria, AUM, or others) and add TB DualVCF as Audio Unit insert effect to a track or output bus. See below on how to use Audio Units in various host apps. Key features: - The same professional sound as the acclaimed desktop version - Two analog filter sections with dozens of filter designs - Intuitive modulation editor for creative, rhythmic and evolving effects - Undo/redo, and A/B comparison - Color themes for the user interface - Max screen support in Garageband - Optimised for iPad and compatible with iPhone and iPod Touch What you should know: - Licenses acquired for this platform are not compatible with other platforms. - Audio Unit (AUv3) extensions require an iPad mini 2, iPad 4 or later models.
Screenshots
Verdict
The clearest difference is update cadence: TB DualVCF at every 2 months against Stereo Width Control's every 12 months. TB DualVCF also leads on price ($4.99 vs $5.99). Stereo Width Control's advantage is review sentiment (100% vs 80%) and iOS requirement (10.3 vs 13.0). On rating, ratings volume, 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
Stereo Width Control costs $5.99 and TB DualVCF $4.99 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 Stereo Width Control against 4.9 for TB DualVCF. Both are backed by a comparable volume of ratings — 12 and 18 respectively. Written reviews are what separate them: 100% of Stereo Width Control's written reviews are positive against 80% of TB DualVCF's.
Stereo Width Control ships an update every 12 months, TB DualVCF every 2 months. The most recent releases landed on October 10, 2026 and September 23, 2026 respectively.
| Parameter | Stereo Width Control | TB DualVCF |
|---|---|---|
| Price | $5.99 | $4.99 — better |
| Rating | 5.0 (12 ratings) — better | 4.9 (18 ratings) |
| Positive reviews | 100.0% of reviews — better | 80.0% of reviews |
| Number of ratings | 12 | 18 — better |
| Update frequency | Every 12 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 10.3 — better | 13.0 |
| Further details — not scored | ||
| Size | 3 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | Blue Mangoo Consulting Company Limited | ToneBoosters |
Customer experience
Stereo Width Control
TB DualVCF
In-app purchases
Stereo Width Control
No in-app purchases
TB DualVCF
No in-app purchases
Questions
Is Stereo Width Control free?
Is TB DualVCF free?
Which has better reviews, Stereo Width Control or TB DualVCF?
Do Stereo Width Control or TB DualVCF have ads?
Which is updated more often, Stereo Width Control or TB DualVCF?
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