# MelodyHarmonizer vs FrobulatorAU

The clearest difference is price: FrobulatorAU at Free against MelodyHarmonizer's $1.99. MelodyHarmonizer's advantage is update cadence (every 4 days vs every 9 days). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

FrobulatorAU is free to download; MelodyHarmonizer costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

MelodyHarmonizer ships an update every 4 days, FrobulatorAU every 9 days. The most recent releases landed on October 25, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | MelodyHarmonizer | FrobulatorAU |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | — | **[5.0 (8 ratings)](https://appshunter.io/ios/app/frobulatorau/id6760205581/reviews)** |
| Number of ratings | — | **8** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 9 days |
| Monetization | — | Free |
| Size | 101 MB | 2 MB |
| Requires iOS | **16.6** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Atte Tenkanen](https://appshunter.io/developer/1857262351) | [Matthew Caldwell](https://appshunter.io/developer/993500585) |

## What reviewers say

### MelodyHarmonizer

[App page](https://appshunter.io/ios/app/melodyharmonizer/id6755915345)

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

**In-app purchases:** none


### FrobulatorAU

[App page](https://appshunter.io/ios/app/frobulatorau/id6760205581)

This audio effect plugin transforms sounds with spectral delay, adding unique character to music projects. It's a free and open-source tool designed for use in various audio applications, offering extensive creative possibilities.

**Highlights:** Spectral delay effect, AUv3 plugin, Use in GarageBand, AUM, and other DAWs, Multiple instances per project, Free and open-source, No ads or in-app purchases

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is MelodyHarmonizer free?

MelodyHarmonizer costs $1.99, with no in-app purchases.

### Is FrobulatorAU free?

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

### Do MelodyHarmonizer or FrobulatorAU have ads?

Neither MelodyHarmonizer nor FrobulatorAU shows ads.

### Which is updated more often, MelodyHarmonizer or FrobulatorAU?

MelodyHarmonizer ships an update every 4 days, and FrobulatorAU every 9 days. Most recently, MelodyHarmonizer was updated on October 25, 2026 and FrobulatorAU on October 17, 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.*