# TB DualVCF vs TfxEcho

The clearest difference is rating: TB DualVCF at 4.9 against TfxEcho's 4.7. TB DualVCF also leads on update cadence (every 2 months vs every 3 months). On price, review sentiment, ratings volume and ads there is nothing between them.

TB DualVCF costs $4.99 and TfxEcho $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

TB DualVCF holds the better App Store score, 4.9 against 4.7. Both are backed by a comparable volume of ratings — 18 and 12 respectively. Written reviews split almost evenly too, at 80% and 80% positive.

TB DualVCF ships an update every 2 months, TfxEcho every 3 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | TB DualVCF | TfxEcho |
| --- | --- | --- |
| Price | $4.99 | $4.99 |
| Rating | **[4.9 (18 ratings)](https://appshunter.io/ios/app/tb-dualvcf/id1505169270/reviews)** | [4.7 (12 ratings)](https://appshunter.io/ios/app/tfxecho/id1523777426/reviews) |
| Number of ratings | **18** | 12 |
| Positive reviews | 80.0% of reviews | 80.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Paid | Paid |
| Size | 12 MB | 1 MB |
| Requires iOS | **13.0** | 13.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ToneBoosters](https://appshunter.io/developer/1472446500) | [Ryo Togawa](https://appshunter.io/developer/1474193056) |

## 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


### TfxEcho

[App page](https://appshunter.io/ios/app/tfxecho/id1523777426)

This audio plugin offers a warm, dark echo effect inspired by analog delay units. It allows for adjustable delay times, feedback, and filters, with modulation capabilities and tempo syncing. The plugin captures high-frequency signals for a versatile sound.

**Highlights:** Echo and delay effect, BBD-inspired delay lines, Adjustable delay time (20-1200 ms), Feedback control (0-100%), Low-pass and high-pass filters, Modulation rate and width, Tempo sync

**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 TfxEcho free?

TfxEcho costs $4.99, with no in-app purchases.

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

TB DualVCF is rated higher. TB DualVCF averages 4.9 out of 5 from 18 ratings, while TfxEcho averages 4.7 from 12 ratings.

### Do TB DualVCF or TfxEcho have ads?

Neither TB DualVCF nor TfxEcho shows ads.

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

TB DualVCF ships an update every 2 months, and TfxEcho every 3 months. Most recently, TB DualVCF was updated on November 3, 2026 and TfxEcho on November 3, 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.*