# TB DualVCF vs Spatializer

The clearest difference is price: TB DualVCF at $4.99 against Spatializer's $9.99. Spatializer's advantage is review sentiment (91% vs 80%). On rating, ratings volume, update cadence and ads there is nothing between them.

TB DualVCF costs $4.99 and Spatializer $9.99 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 — 4.9 for TB DualVCF against 4.8 for Spatializer. Both are backed by a comparable volume of ratings — 18 and 27 respectively. Written reviews are what separate them: 80% of TB DualVCF's written reviews are positive against 91% of Spatializer's.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 23, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | TB DualVCF | Spatializer |
| --- | --- | --- |
| Price | **$4.99** | $9.99 |
| Rating | **[4.9 (18 ratings)](https://appshunter.io/ios/app/tb-dualvcf/id1505169270/reviews)** | [4.8 (27 ratings)](https://appshunter.io/ios/app/spatializer/id1574889552/reviews) |
| Number of ratings | 18 | **27** |
| Positive reviews | 80.0% of reviews | **90.9% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Paid | Paid |
| Size | 12 MB | 13 MB |
| Requires iOS | 13.0 | **12.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ToneBoosters](https://appshunter.io/developer/1472446500) | [quantovox](https://appshunter.io/developer/484686124) |

## What reviewers say

### TB DualVCF

[App page](https://appshunter.io/ios/app/tb-dualvcf/id1505169270)

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.

**Highlights:** Dual analog filter sections, Dozens of vintage filter models, Envelope followers, Intuitive modulation editor, AUv3 plug-in compatibility, Real-time audio processing

**In-app purchases:** none


### Spatializer

[App page](https://appshunter.io/ios/app/spatializer/id1574889552)

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.

**Highlights:** 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

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is TB DualVCF free?

TB DualVCF costs $4.99, with no in-app purchases.

### Is Spatializer free?

Spatializer costs $9.99, with no in-app purchases.

### Which has better reviews, TB DualVCF or Spatializer?

TB DualVCF is rated higher. TB DualVCF averages 4.9 out of 5 from 18 ratings, while Spatializer averages 4.8 from 27 ratings.

### Do TB DualVCF or Spatializer have ads?

Neither TB DualVCF nor Spatializer shows ads.

### Which is updated more often, TB DualVCF or Spatializer?

TB DualVCF ships an update every 2 months, and Spatializer every 2 months. Most recently, TB DualVCF was updated on September 23, 2026 and Spatializer on October 6, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*