# Stereo Modulator vs TB DualVCF

Stereo Modulator and TB DualVCF both sit at 5.0 stars, but that hides the real split: 100% of Stereo Modulator's written reviews are positive against 80% of TB DualVCF's. Stereo Modulator also leads on price ($2.99 vs $4.99) and iOS requirement (10.0 vs 13.0). TB DualVCF's advantage is chart position (#190 vs unranked) and ratings volume (18 vs 3). On rating, update cadence, ads and in-app purchases there is nothing between them.

Stereo Modulator costs $2.99 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 Modulator against 4.9 for TB DualVCF. That said, the two scores are not equally well evidenced: TB DualVCF has 18 ratings behind it against 3, so its average is the more settled of the two. Written reviews are what separate them: 100% of Stereo Modulator's written reviews are positive against 80% of TB DualVCF's.

Stereo Modulator ships an update every 3 months, TB DualVCF every 2 months. The most recent releases landed on August 30, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | Stereo Modulator | TB DualVCF |
| --- | --- | --- |
| Price | **$2.99** | $4.99 |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/stereo-modulator/id1370816026/reviews)** | [4.9 (18 ratings)](https://appshunter.io/ios/app/tb-dualvcf/id1505169270/reviews) |
| Number of ratings | 3 | **18** |
| Positive reviews | **100.0% of reviews** | 80.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Paid | Paid |
| Best chart rank | — | **#190** |
| Size | 2 MB | 12 MB |
| Requires iOS | **10.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Blue Mangoo Consulting Company Limited](https://appshunter.io/developer/1475107602) | [ToneBoosters](https://appshunter.io/developer/1472446500) |

## What reviewers say

### Stereo Modulator

[App page](https://appshunter.io/ios/app/stereo-modulator/id1370816026)

This audio effect plugin transforms mono sound into stereo, adding width and depth. It uses micro-delays to create a natural sense of space, with optional LFO modulation for a Leslie speaker-like effect without pitch shifting. Ideal for creating separation in mixes, especially for guitars and vocals.

**Highlights:** Mono to stereo conversion, Adjustable stereo width, Optional LFO modulation, Micro-delay de-correlators, Creates natural spatial depth, No pitch shifting or echo

**Features:** macOS Compatibility

**In-app purchases:** none


### TB DualVCF

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

**Currently charting:** #190 Top Paid · Music (US App Store)

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


## Frequently asked questions

### Is Stereo Modulator free?

Stereo Modulator costs $2.99, with no in-app purchases.

### Is TB DualVCF free?

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

### Which has better reviews, Stereo Modulator or TB DualVCF?

Stereo Modulator is rated higher. Stereo Modulator averages 5.0 out of 5 from 3 ratings, while TB DualVCF averages 4.9 from 18 ratings.

### Do Stereo Modulator or TB DualVCF have ads?

Neither Stereo Modulator nor TB DualVCF shows ads.

### Which is updated more often, Stereo Modulator or TB DualVCF?

Stereo Modulator ships an update every 3 months, and TB DualVCF every 2 months. Most recently, Stereo Modulator was updated on August 30, 2026 and TB DualVCF on September 8, 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.*