# Voice Synth Modular vs AudioKit Synth One Synthesizer

The clearest difference is review sentiment: AudioKit Synth One Synthesizer at 95% against Voice Synth Modular's 41%. AudioKit Synth One Synthesizer also leads on rating (4.9 vs 4.2) and in-app purchases (none vs 2). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Voice Synth Modular sells 2 one-off in-app purchases. AudioKit Synth One Synthesizer asks for nothing beyond the download.

AudioKit Synth One Synthesizer holds the better App Store score, 4.9 against 4.2. That said, the two scores are not equally well evidenced: AudioKit Synth One Synthesizer has 27K ratings behind it against 3.1K, so its average is the more settled of the two. Written reviews point the same way: 41% of Voice Synth Modular's written reviews are positive against 95% of AudioKit Synth One Synthesizer's.

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on November 6, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | Voice Synth Modular | AudioKit Synth One Synthesizer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (3.1K ratings)](https://appshunter.io/ios/app/voice-synth-modular/id767295197/reviews) | **[4.9 (27K ratings)](https://appshunter.io/ios/app/audiokit-synth-one-synthesizer/id1371050497/reviews)** |
| Number of ratings | 3.1K | **27K** |
| Positive reviews | 41.3% of reviews | **94.5% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | Monthly |
| Monetization | Free with in-app purchases | **Free** |
| Size | 66 MB | 34 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) | [AudioKit Pro](https://appshunter.io/developer/1307785645) |

## What reviewers say

### Voice Synth Modular

[App page](https://appshunter.io/ios/app/voice-synth-modular/id767295197)

Transform your voice into a musical instrument with a suite of advanced audio effects. Create robotic voices, harmonies, and unique soundscapes using only your voice. Save and share your creations, or integrate them into your digital audio workstation.

**Highlights:** Live voice processing, Vocoders, Auto Pitch, Harmonizing Pitch Shift, Speed-Shift Sampling, Create organic soundscapes, Save and share creations

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Tools | Free | one-time |
| Upgrade | $8.99 | one-time |

**What reviewers like**

- 🔥 Powerful voice modulation
- 🎨 Huge array of filters and sounds
- 🎹 Ability to create beats from voice
- 🎶 Excellent for vocal performances
- 👍 Intuitive and user-friendly interface

**What reviewers complain about**

- 💰 Paid features hidden behind paywall
- 🔒 Confusing upgrade process
- 🐛 Unreliable recording and playback
- 🤔 Unintuitive workflow and lack of guidance
- 🤷‍♀️ Inconsistent functionality across updates

**Reported bugs**

- Crashes and freezes when using certain features
- Microphone not detected or working properly
- Imported audio files not playing back correctly
- Presets and settings not saving or loading properly

**Requested features**

- Ability to record and process own voice
- Deeper integration with music production apps
- More customization and preset options
- Better documentation and tutorials
- System audio capture and processing


### AudioKit Synth One Synthesizer

[App page](https://appshunter.io/ios/app/audiokit-synth-one-synthesizer/id1371050497)

This is a free, open-source professional synthesizer app for iOS devices. It offers over 300 presets, MIDI support, a sequencer, and vintage-inspired filters. Learn music production basics and create your own sounds.

**Highlights:** Over 300+ Presets, MIDI Support, Vintage-Style Sequencer, Analog Filters, Expressive Arpeggiators, Open-Source

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 😎 Easy to use
- 🔥 Clean patches
- 👍 Awesome synth
- 🎸 Works great with GarageBand
- 🤩 Absolutely stunning

**What reviewers complain about**

- 🤔 No AU support yet
- 🤔 Crashes with Audiobus 3
- 🤔 Poor palette of sounds
- 🤔 Mod wheel issues
- 🤔 Occasional crashes

**Reported bugs**

- Login screen freezes
- Incompatible with older devices
- Keyboard issues on iPhone
- Crashes with Audiobus 3
- Mod wheel issues

**Requested features**

- Add AU support
- Add just intonation feature
- Add dotted-8th-note delay option
- Add more sound packs
- Add drum machine/sequencing capabilities


## Frequently asked questions

### Is Voice Synth Modular free?

Voice Synth Modular is free to download, with in-app purchases available.

### Is AudioKit Synth One Synthesizer free?

AudioKit Synth One Synthesizer is free to download, with no in-app purchases.

### Which has better reviews, Voice Synth Modular or AudioKit Synth One Synthesizer?

AudioKit Synth One Synthesizer is rated higher. Voice Synth Modular averages 4.2 out of 5 from 3.1K ratings, while AudioKit Synth One Synthesizer averages 4.9 from 27K ratings.

### Do Voice Synth Modular or AudioKit Synth One Synthesizer have ads?

Neither Voice Synth Modular nor AudioKit Synth One Synthesizer shows ads.

### Which is updated more often, Voice Synth Modular or AudioKit Synth One Synthesizer?

Voice Synth Modular ships an update monthly, and AudioKit Synth One Synthesizer monthly. Most recently, Voice Synth Modular was updated on November 6, 2026 and AudioKit Synth One Synthesizer on November 10, 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.*