# Harmonizer vs J.J.Moon AUv3 Plugin

The clearest difference is in-app purchases: Harmonizer at none against J.J.Moon AUv3 Plugin's 1. J.J.Moon AUv3 Plugin's advantage is update cadence (weekly vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. J.J.Moon AUv3 Plugin sells 1 one-off in-app purchase. Harmonizer asks for nothing beyond the download.

Harmonizer ships an update every 2 months, J.J.Moon AUv3 Plugin weekly. The most recent releases landed on October 16, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Harmonizer | J.J.Moon AUv3 Plugin |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/jjmoon-auv3-plugin/id6813232689/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | — | Free with in-app purchases |
| Size | 20 MB | 8 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | +4 |
| Developer | [Peter Hafner](https://appshunter.io/developer/1625319412) | [Petar Gerov](https://appshunter.io/developer/1889588782) |

## What reviewers say

### Harmonizer

[App page](https://appshunter.io/ios/app/harmonizer-auv3/id6791999719)

**In-app purchases:** none


### J.J.Moon AUv3 Plugin

[App page](https://appshunter.io/ios/app/jjmoon-auv3-plugin/id6813232689)

Enhance your acoustic guitar sound with this AUv3 plugin. It offers detailed control over body, air, and string tones, plus compression, stereo width, and spatial effects. Try it free for seven days before a one-time purchase unlocks all features permanently.

**Highlights:** Acoustic guitar curve engine, Multi-band EQ shaping, Optical compressor, Stereo micro-pitch widening, Short stereo double and room bloom, Fifteen factory presets, Customizable panel finishes

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| jj-moon Unlock | $2.99 | one-time |


## Frequently asked questions

### Is Harmonizer free?

Harmonizer is free to download, with no in-app purchases.

### Is J.J.Moon AUv3 Plugin free?

J.J.Moon AUv3 Plugin is free to download, with in-app purchases available.

### Do Harmonizer or J.J.Moon AUv3 Plugin have ads?

Neither Harmonizer nor J.J.Moon AUv3 Plugin shows ads.

### Which is updated more often, Harmonizer or J.J.Moon AUv3 Plugin?

Harmonizer ships an update every 2 months, and J.J.Moon AUv3 Plugin weekly. Most recently, Harmonizer was updated on October 16, 2026 and J.J.Moon AUv3 Plugin on October 25, 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.*