# MultiTone Generator PRO vs AudioKit Synth One J6 + AUv3

The clearest difference is price: AudioKit Synth One J6 + AUv3 at Free against MultiTone Generator PRO's $9.99. AudioKit Synth One J6 + AUv3 also leads on update cadence (every 11 days vs every 6 weeks) and ratings volume (2.5K vs 103). MultiTone Generator PRO's advantage is in-app purchases (none vs 5). On rating, ads, device support and iOS requirement there is nothing between them.

AudioKit Synth One J6 + AUv3 is free to download; MultiTone Generator PRO costs $9.99 up front. AudioKit Synth One J6 + AUv3 sells 5 one-off in-app purchases. MultiTone Generator PRO asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.9 for MultiTone Generator PRO against 4.9 for AudioKit Synth One J6 + AUv3. That said, the two scores are not equally well evidenced: AudioKit Synth One J6 + AUv3 has 2.5K ratings behind it against 103, so its average is the more settled of the two. Written reviews are what separate them: 83% of MultiTone Generator PRO's written reviews are positive against 94% of AudioKit Synth One J6 + AUv3's.

MultiTone Generator PRO ships an update every 6 weeks, AudioKit Synth One J6 + AUv3 every 11 days. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | MultiTone Generator PRO | AudioKit Synth One J6 + AUv3 |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | [4.9 (103 ratings)](https://appshunter.io/ios/app/multitone-generator-pro/id1143928697/reviews) | **[4.9 (2.5K ratings)](https://appshunter.io/ios/app/audiokit-synth-one-j6-plus-auv3/id6741535277/reviews)** |
| Number of ratings | 103 | **2.5K** |
| Positive reviews | 83.3% of reviews | **93.9% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 11 days** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 9 MB | 72 MB |
| Requires iOS | 15.5 | **15.0** |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Thomas Gruber](https://appshunter.io/developer/342699861) | [AudioKit Pro](https://appshunter.io/developer/1307785645) |

## What reviewers say

### MultiTone Generator PRO

[App page](https://appshunter.io/ios/app/multitone-generator-pro/id1143928697)

Generate and combine up to 16 different audio tones, including sine, rectangular, triangular, and sawtooth waves. Create frequency sweeps in both directions and play white or pink noise. This intuitive tool offers customizable ranges and sweep times for various audio testing needs.

**Highlights:** Create up to 16 tone combinations, Play sine, rectangular, triangular, and sawtooth waves, Generate frequency sweeps (min-max and max-min), Sweep repeat/wobble function, Play white and pink noise, Customizable frequency and sweep time ranges

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

**In-app purchases:** none


### AudioKit Synth One J6 + AUv3

[App page](https://appshunter.io/ios/app/audiokit-synth-one-j6-plus-auv3/id6741535277)

This app offers a professional-quality virtual analog synthesizer inspired by classic hardware. It provides a vast library of presets, real-time effects control, and a user-friendly interface for both beginners and experienced musicians. It can be used as a standalone instrument or as an AUv3 plugin.

**Highlights:** 400+ Presets, Dual Assignable Touch Pads, Real-time FX Control, 3 LFOs with extensive modulation, MIDI Keyboard and MIDI Learn support, Classic Step Sequencer, AUv3 Plugin support

**Features:** Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Thanks, Awesome Supporter! | $2.99 | one-time |
| Thanks, Awesome Supporter! | $4.99 | one-time |
| Thanks, Awesome Supporter! | $9.99 | one-time |
| Thanks, Awesome Supporter! | $14.99 | one-time |
| Thanks, Awesome Supporter! | $19.99 | one-time |

**What reviewers like**

- 🚀 Amazingly inspirational
- 👍 Awesome and free
- 👍 Ridiculously good UI
- 👍 Must have
- 👍 Great for AUv3


## Frequently asked questions

### Is MultiTone Generator PRO free?

MultiTone Generator PRO costs $9.99, with no in-app purchases.

### Is AudioKit Synth One J6 + AUv3 free?

AudioKit Synth One J6 + AUv3 is free to download, with in-app purchases available.

### Which has better reviews, MultiTone Generator PRO or AudioKit Synth One J6 + AUv3?

AudioKit Synth One J6 + AUv3 is rated higher. MultiTone Generator PRO averages 4.9 out of 5 from 103 ratings, while AudioKit Synth One J6 + AUv3 averages 4.9 from 2.5K ratings.

### Do MultiTone Generator PRO or AudioKit Synth One J6 + AUv3 have ads?

Neither MultiTone Generator PRO nor AudioKit Synth One J6 + AUv3 shows ads.

### Which is updated more often, MultiTone Generator PRO or AudioKit Synth One J6 + AUv3?

MultiTone Generator PRO ships an update every 6 weeks, and AudioKit Synth One J6 + AUv3 every 11 days. Most recently, MultiTone Generator PRO was updated on October 23, 2026 and AudioKit Synth One J6 + AUv3 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.*