# Holon vs FrobulatorAU

The clearest difference is rating: FrobulatorAU at 5.0 against Holon's 4.5. FrobulatorAU also leads on in-app purchases (none vs 2) and update cadence (every 9 days vs every 3 months). Holon's advantage is device support (4 vs 2) and iOS requirement (12.0 vs 17.0). On price, ratings volume and ads there is nothing between them.

Both are free to download. Holon sells 2 one-off in-app purchases. FrobulatorAU asks for nothing beyond the download.

FrobulatorAU holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 14 and 8 respectively.

Holon ships an update every 3 months, FrobulatorAU every 9 days. The most recent releases landed on October 19, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Holon | FrobulatorAU |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (14 ratings)](https://appshunter.io/ios/app/holon/id1352687747/reviews) | **[5.0 (8 ratings)](https://appshunter.io/ios/app/frobulatorau/id6760205581/reviews)** |
| Number of ratings | **14** | 8 |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 9 days** |
| Monetization | Paid | **Free** |
| Size | 144 MB | 2 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Holonic Systems Oy](https://appshunter.io/developer/1172474856) | [Matthew Caldwell](https://appshunter.io/developer/993500585) |

## What reviewers say

### Holon

[App page](https://appshunter.io/ios/app/holon/id1352687747)

This app transforms your movement through cities into a dynamic, real-time musical score. It uses your physical location and activity to generate interactive synth music, encouraging outdoor exploration and turning listeners into performers.

**Highlights:** Human-powered music generation, Encourages outdoor activity, Zero UI for minimal distraction, Environmentally responsive music, Real-time synth music creation, Optional AirPods and Apple Watch integration

**Features:** Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Apple Watch support | Free | one-time |
| Movesense Support | Free | one-time |


### 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 Holon free?

Holon is free to download, with in-app purchases available.

### Is FrobulatorAU free?

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

### Which has better reviews, Holon or FrobulatorAU?

FrobulatorAU is rated higher. Holon averages 4.5 out of 5 from 14 ratings, while FrobulatorAU averages 5.0 from 8 ratings.

### Do Holon or FrobulatorAU have ads?

Neither Holon nor FrobulatorAU shows ads.

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

Holon ships an update every 3 months, and FrobulatorAU every 9 days. Most recently, Holon was updated on October 19, 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.*