# AudioKit Synth One J6 + AUv3 vs Harmonic Explorer

The clearest difference is price: AudioKit Synth One J6 + AUv3 at Free against Harmonic Explorer's $0.99. AudioKit Synth One J6 + AUv3 also leads on update cadence (every 11 days vs every 7 months). Harmonic Explorer's advantage is in-app purchases (none vs 5). On ads, device support and iOS requirement there is nothing between them.

AudioKit Synth One J6 + AUv3 is free to download; Harmonic Explorer costs $0.99 up front. AudioKit Synth One J6 + AUv3 sells 5 one-off in-app purchases. Harmonic Explorer asks for nothing beyond the download.

AudioKit Synth One J6 + AUv3 ships an update every 11 days, Harmonic Explorer every 7 months. Both last shipped on October 30, 2026.

## The numbers

| Metric | AudioKit Synth One J6 + AUv3 | Harmonic Explorer |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[4.9 (2.5K ratings)](https://appshunter.io/ios/app/audiokit-synth-one-j6-plus-auv3/id6741535277/reviews)** | — |
| Number of ratings | **2.5K** | — |
| Positive reviews | 94.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 11 days** | Every 7 months |
| Monetization | Free with in-app purchases | — |
| Size | 72 MB | 2 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [AudioKit Pro](https://appshunter.io/developer/1307785645) | [Philippe Zay](https://appshunter.io/developer/1200498230) |

## What reviewers say

### 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


### Harmonic Explorer

[App page](https://appshunter.io/ios/app/harmonic-explorer/id6747025974)

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

**In-app purchases:** none


## Frequently asked questions

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

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

### Is Harmonic Explorer free?

Harmonic Explorer costs $0.99, with no in-app purchases.

### Do AudioKit Synth One J6 + AUv3 or Harmonic Explorer have ads?

Neither AudioKit Synth One J6 + AUv3 nor Harmonic Explorer shows ads.

### Which is updated more often, AudioKit Synth One J6 + AUv3 or Harmonic Explorer?

AudioKit Synth One J6 + AUv3 ships an update every 11 days, and Harmonic Explorer every 7 months. Most recently, AudioKit Synth One J6 + AUv3 was updated on October 30, 2026 and Harmonic Explorer on October 30, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*