Spatializer vs Crystalline
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.
Crystalline
Create rich, modern reverb effects for your music. This audio plugin offers advanced control over sound reflections, allowing you to sync timing to your song's tempo. Experience pristine sound quality for your mobile music productions.
- State-of-the-art reverb algorithm
- Lush and modern sound
- Creative control over reflections
- Sync reverb to song tempo
- AUv3 plugin for mobile DAWs
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Make room for lush reflections! Crystalline App is the AUv3 version of Baby Audio's state-of-the-art reverb plugin for mobile DAWs. It offers the same pristine sound and versatile feature set as the desktop version. Highlights: * State-of-the-art reverb algorithm with a lush and modern sound * Gives you unprecedented creative control to shape your reflections * Lets you sync reverb start and decay times to your song’s tempo
Screenshots
Verdict
The clearest difference is price: Spatializer at $9.99 against Crystalline's $29.99. Spatializer also leads on review sentiment (91% vs 75%) and iOS requirement (12.1 vs 15.0). On rating, ratings volume, update cadence and ads 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 Crystalline $29.99 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 — 4.8 for Spatializer against 4.9 for Crystalline. Both are backed by a comparable volume of ratings — 27 and 22 respectively. Written reviews are what separate them: 91% of Spatializer's written reviews are positive against 75% of Crystalline's.
Spatializer ships an update every 2 months, Crystalline every 3 months. The most recent releases landed on September 15, 2026 and September 2, 2026 respectively.
| Parameter | Spatializer | Crystalline |
|---|---|---|
| Price | $9.99 — better | $29.99 |
| Rating | 4.8 (27 ratings) | 4.9 (22 ratings) — better |
| Positive reviews | 90.9% of reviews — better | 75.0% of reviews |
| Number of ratings | 27 — better | 22 |
| Update frequency | Every 2 months — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.1 — better | 15.0 |
| Further details — not scored | ||
| Size | 13 MB | 46 MB |
| Age rating | 4+ | 4+ |
| Developer | quantovox | Baby Audio Inc. |
Customer experience
Spatializer
Crystalline
In-app purchases
Spatializer
No in-app purchases
Crystalline
No in-app purchases









