# Harmonizer audio effect vs SpaceFields

The clearest difference is review sentiment: SpaceFields at 90% against Harmonizer audio effect's 23%. SpaceFields also leads on rating (4.7 vs 3.0) and update cadence (every 2 months vs every 8 months). Harmonizer audio effect's advantage is price ($1.99 vs $10.99) and iOS requirement (10.0 vs 13.4). On ads, in-app purchases, monetization model and device support there is nothing between them.

Harmonizer audio effect costs $1.99 and SpaceFields $10.99 up front. Neither carries in-app purchases, so what you see is what you pay.

SpaceFields holds the better App Store score, 4.7 against 3.0. That said, the two scores are not equally well evidenced: SpaceFields has 47 ratings behind it against 9, so its average is the more settled of the two. Written reviews point the same way: 23% of Harmonizer audio effect's written reviews are positive against 90% of SpaceFields's.

Harmonizer audio effect ships an update every 8 months, SpaceFields every 2 months. The most recent releases landed on September 20, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | Harmonizer audio effect | SpaceFields |
| --- | --- | --- |
| Price | **$1.99** | $10.99 |
| Rating | [3.0 (9 ratings)](https://appshunter.io/ios/app/harmonizer-audio-effect/id1209475596/reviews) | **[4.7 (47 ratings)](https://appshunter.io/ios/app/spacefields/id1596872812/reviews)** |
| Number of ratings | 9 | **47** |
| Positive reviews | 23.1% of reviews | **90.5% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 2 months** |
| Monetization | Paid | Paid |
| Size | 14 MB | 132 MB |
| Requires iOS | **10.0** | 13.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Aleksandar Mlazev](https://appshunter.io/developer/1093798140) | [Igor Vasiliev](https://appshunter.io/developer/424401626) |

## What reviewers say

### Harmonizer audio effect

[App page](https://appshunter.io/ios/app/harmonizer-audio-effect/id1209475596)

This real-time audio effect app shifts pitch and adds harmonies to your original sound. It functions as an Audio Unit plugin or a standalone effect using your device's microphone or external audio interfaces. The pitch shifting preserves the original timing and tempo.

**Highlights:** Real-time pitch shifting, Two harmony voices, Smooth pitch shift controls, Adjustable voice volumes, Master reverb effect, Standalone mode via microphone

**Features:** Vision Pro support

**In-app purchases:** none


### SpaceFields

[App page](https://appshunter.io/ios/app/spacefields/id1596872812)

Create evolving rhythmic soundscapes from any audio source. This app uses a loop-based system with dual loops, pitch shifting, and effects to generate ambient textures and rhythmic structures. Experiment with complex sound design using intuitive controls and randomization.

**Highlights:** Loop-based sound mangling, Dual loop recorder, Pitch shifting and effects, Convolution reverb with deep spaces, Rhythmic structure generation, Automation generators with randomization, Live and sample processing modes

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Harmonizer audio effect free?

Harmonizer audio effect costs $1.99, with no in-app purchases.

### Is SpaceFields free?

SpaceFields costs $10.99, with no in-app purchases.

### Which has better reviews, Harmonizer audio effect or SpaceFields?

SpaceFields is rated higher. Harmonizer audio effect averages 3.0 out of 5 from 9 ratings, while SpaceFields averages 4.7 from 47 ratings.

### Do Harmonizer audio effect or SpaceFields have ads?

Neither Harmonizer audio effect nor SpaceFields shows ads.

### Which is updated more often, Harmonizer audio effect or SpaceFields?

Harmonizer audio effect ships an update every 8 months, and SpaceFields every 2 months. Most recently, Harmonizer audio effect was updated on September 20, 2026 and SpaceFields on September 27, 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.*