Spatializer vs TB MBC
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Spatializer
Enhance audio with stereo widening that preserves mono compatibility and avoids phase issues. This tool synthesizes side channel information, ideal for mono sources or adding depth to existing stereo tracks without compromising the mid channel.
- Stereo widening without phase smearing
- Synthesizes side channel information
- Preserves mid channel integrity
- Flexible for mono and stereo sources
- Transparent or strong effect options
- Multiband transient shapers
- Directional RMS distribution visualization
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Spatializer is a great choice if you want to widen your sounds but need to avoid: • phase smearing in the mono mix • phasing / comb filter effects (from asymmetric channel delays) • or any changes to the mid channel or mono mix The plugin's main focus is to enhance sounds that have little or no side channel information, where traditional widening approaches like mid-side processing can't be effectively used. It also offers more flexibility in case of mixed inputs, widening narrow components without boosting already existing stereo width to extreme levels that would drown out the mid channel, leading to stereo image problems. Spatializer can also be combined with other effects, for example it's excellent for augmenting large-scale reverbs by enhancing the more immediate space or effectively moving the listener closer to the virtual sound source. At large timescales, the plugin takes on some of the qualities of a reverb itself, while keeping the mid channel sharp and free of any reflections. This could either be used as a special effect in and of itself (depending on the transient characteristics of the input), or be blended together with traditional ambience or acoustic space simulation effects. FEATURES: • Synthesis of side channel information where there was none (stereoization of mono sources) • Linear phase mid channel • Capability to deliver both a neutral / transparent response as well as stronger effects • Built-in multiband transient shapers for delivering a more focused response by suppressing outlier reflections • Multiple visualization options: Directional RMS distribution, position and motion • Effects can range from close-proximity / spatial audio effects to larger acoustic space reflections • Baseline frequency response is optimized to maximize flatness, balancing the spectral density of Left, Right, Side channels The built-in selection of subtly tuned presets and the combined psychoacoustic properties of the above features give more leeway to easily experiment with kinds of source material that have traditionally presented difficulties, like tracks with prominent LF content. Due to its ability to provide transparent, subtle and high-clarity responses, as well as good spectral density characteristics, Spatializer can also be included in master bus effects chains. In multi-track setups it can be used in parallel with other positioning methods to bring more variation to the sound stage or to provide additional ways to adjust the mix. For audio demos, visit: www.quantovox.com/sp PLEASE NOTE: • AUv3-compatible host application required • Supported sampling rates: 22.05, 44.1, 48, 96 kHz.
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 rating: Spatializer at 4.8 against TB MBC's 4.6. On price, 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
Spatializer costs $9.99 and TB MBC $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Spatializer holds the better App Store score, 4.8 against 4.6. Both are backed by a comparable volume of ratings — 27 and 13 respectively. Written reviews point the same way: 91% of Spatializer's written reviews are positive against 89% of TB MBC's.
Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 13, 2026 and October 14, 2026 respectively.
| Parameter | Spatializer | TB MBC |
|---|---|---|
| Price | $9.99 | $9.99 |
| Rating | 4.8 (27 ratings) — better | 4.6 (13 ratings) |
| Positive reviews | 90.9% of reviews — better | 88.9% of reviews |
| Number of ratings | 27 — better | 13 |
| Update frequency | Every 2 months | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.1 — better | 13.0 |
| Further details — not scored | ||
| Size | 13 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | quantovox | ToneBoosters |
Customer experience
Spatializer
TB MBC
In-app purchases
Spatializer
No in-app purchases
TB MBC
No in-app purchases









