JAX Stereo Tool (AU) vs TB MBC
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
JAX Stereo Tool (AU)
This audio processing tool allows users to visually manipulate the stereo image of digital audio. It functions as a mastering effect, enabling real-time adjustment of stereo width and the recovery of mono compatibility. The app includes a correlograph for visual feedback and optimization.
- Visual stereo image manipulation
- Real-time stereo width adjustment
- Mono compatibility recovery
- Integrated correlograph for visual feedback
- Audio Unit (AUv3) plugin format
- System-wide availability
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JAX Stereo Tool is a visual Audio Unit plugin for manipulating the stereo image of digital audio. The distribution app comes with an embedded plug-in (Audio Unit) that is available system-wide when you install the app. You should be able to use it with most supporting host applications. Audio Units are Apple's recommended method for providing shared audio effects for applications and audio editors. You can load the plugin into any host application that supports at least stereophonic audio effect plug-ins (in Audio Unit format - AUv3) with its own user interface. JAX Stereo Tool has its main use as a mastering effect, that allows you to modify the stereo image of your audio by narrowing or widening it in a controlled manner. That is, the stereo output can be continuously adjusted in the basic function of pure mono to very wide stereo. This happens in real time and you can observe the result with the integrated correlograph, controlling and optimizing the audio thanks to this helpful additional visual information. One of the special functions of JAX Stereo Toolis to recover lost mono-compatibility. This technique is conceptually quite simple and effective but somewhat difficult to understand. Please read the manual for further details. The manual is shipped with the app or available on the product website at https://audio.digitster.com
TB MBC
This advanced audio processing tool offers a powerful multi-band compressor and analog saturator for iOS. Sculpt your sound with up to 12 configurable bands, each with dual compressor curves and saturation options. Achieve professional audio results with extensive features for detailed sound manipulation.
- Up to 12 configurable frequency bands
- Dual compressor curves per band
- Positive and negative saturation per band
- External side chain support
- Mid-side processing
- Spectrum analyzer
- AUv3 plugin
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TB MBC - the ultimate Multi-Band Compressor AUv3 plug-in TB MBC is a multi-band dynamics processor and analog saturator, providing a wealth of tools to sculpt your audio tracks. With up to 12 (!) fully configurable bands, 2 compressor curves per band, positive and negative saturation, and external side chain support, it is the most complete and versatile multi-band compressor available for iOS today. Features: - Up to 12 frequency bands! - Every band has two compressor curves - Upward and downward compression in each band - Positive and negative (expansive) saturation per band - Mid-side processing per band (for stereo input) - External side chain compression per band - Variable, positive and negative band linking per band - Manual or automatic, program-dependent release - Configurable compression knee and compression range parameters - Audition mode per band - 2nd order or 4th order cross-over network - Dry/wet mixing control for parallel / New York style compression - High Quality mode using internal oversampling - Spectrum analyser with various graphic presentation modes - Input and output gain parameters, and output digital VU meter - AUv3 with resizable UI and dozens of color themes to choose from - Preset management including import and export options - Undo, redo, A/B switching - High-quality output peak limiter 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: JAX Stereo Tool (AU) at every 11 days against TB MBC's every 2 months. JAX Stereo Tool (AU) also leads on price ($5.99 vs $9.99). TB MBC's advantage is review sentiment (89% vs 80%). 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
JAX Stereo Tool (AU) costs $5.99 and TB MBC $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.
TB MBC holds the better App Store score, 4.6 against 4.4. Both are backed by a comparable volume of ratings — 27 and 13 respectively. Written reviews point the same way: 80% of JAX Stereo Tool (AU)'s written reviews are positive against 89% of TB MBC's.
JAX Stereo Tool (AU) ships an update every 11 days, TB MBC every 2 months. The most recent releases landed on November 3, 2026 and November 12, 2026 respectively.
| Parameter | JAX Stereo Tool (AU) | TB MBC |
|---|---|---|
| Price | $5.99 — better | $9.99 |
| Rating | 4.4 (27 ratings) | 4.6 (13 ratings) — better |
| Positive reviews | 80.0% of reviews | 88.9% of reviews — better |
| Number of ratings | 27 — better | 13 |
| Update frequency | Every 11 days — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 10 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | Jens Guell | ToneBoosters |
Customer experience
JAX Stereo Tool (AU)
TB MBC
In-app purchases
JAX Stereo Tool (AU)
No in-app purchases
TB MBC
No in-app purchases
Questions
Is JAX Stereo Tool (AU) free?
Is TB MBC free?
Which has better reviews, JAX Stereo Tool (AU) or TB MBC?
Do JAX Stereo Tool (AU) or TB MBC have ads?
Which is updated more often, JAX Stereo Tool (AU) or TB MBC?
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