# Voice Synth vs TB DualVCF

The clearest difference is rating: TB DualVCF at 4.9 against Voice Synth's 4.1. TB DualVCF also leads on price ($4.99 vs $8.99) and review sentiment (80% vs 63%). Voice Synth's advantage is ratings volume (335 vs 18). On update cadence, ads, in-app purchases and monetization model there is nothing between them.

Voice Synth costs $8.99 and TB DualVCF $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 4.1. That said, the two scores are not equally well evidenced: Voice Synth has 335 ratings behind it against 18, so its average is the more settled of the two. Written reviews point the same way: 63% of Voice Synth's written reviews are positive against 80% of TB DualVCF's.

Voice Synth ships an update every 6 weeks, TB DualVCF every 2 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | Voice Synth | TB DualVCF |
| --- | --- | --- |
| Price | $8.99 | **$4.99** |
| Rating | [4.1 (335 ratings)](https://appshunter.io/ios/app/voice-synth/id490511069/reviews) | **[4.9 (18 ratings)](https://appshunter.io/ios/app/tb-dualvcf/id1505169270/reviews)** |
| Number of ratings | **335** | 18 |
| Positive reviews | 62.7% of reviews | **80.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Monetization | Paid | Paid |
| Size | 66 MB | 12 MB |
| Requires iOS | 16.6 | **13.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Qneo](https://appshunter.io/developer/319839998) | [ToneBoosters](https://appshunter.io/developer/1472446500) |

## What reviewers say

### Voice Synth

[App page](https://appshunter.io/ios/app/voice-synth/id490511069)

Transform your voice live with a professional audio processor and music synthesizer. Create robotic voices, harmonies, and unique soundscapes using only your voice as an instrument. Save and share your creations, or integrate them into your existing audio setup.

**Highlights:** Live voice processing, Auto Pitch and Harmonizing, Vocoder effects, Speed-Shift Sampling, Soundscape creation, Audio Unit V3 integration, Save and share presets

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🌟 Excellent sound quality
- 🎨 Powerful sound design capabilities
- 💻 Great for music production
- 🎉 Fun and creative to use

**What reviewers complain about**

- 🤯 Steep learning curve
- 🤖 Robotic/synthetic voice issues
- 🔌 Compatibility problems with other apps
- 💰 Overpriced for some users

**Reported bugs**

- Crashes and freezes
- Audio sync issues
- Unreliable live recording

**Requested features**

- Audiobus support
- Longer recording duration
- More preset options
- Improved user interface and workflow


### 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


## Frequently asked questions

### Is Voice Synth free?

Voice Synth costs $8.99, with no in-app purchases.

### Is TB DualVCF free?

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

### Which has better reviews, Voice Synth or TB DualVCF?

TB DualVCF is rated higher. Voice Synth averages 4.1 out of 5 from 335 ratings, while TB DualVCF averages 4.9 from 18 ratings.

### Do Voice Synth or TB DualVCF have ads?

Neither Voice Synth nor TB DualVCF shows ads.

### Which is updated more often, Voice Synth or TB DualVCF?

Voice Synth ships an update every 6 weeks, and TB DualVCF every 2 months. Most recently, Voice Synth was updated on October 24, 2026 and TB DualVCF on October 24, 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.*