# AE975 vs Harmonitron

The clearest difference is price: Harmonitron at $2.99 against AE975's $19.99. AE975's advantage is device support (4 vs 2). On rating, ratings volume, ads and in-app purchases there is nothing between them.

AE975 costs $19.99 and Harmonitron $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for AE975 against 5.0 for Harmonitron. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

## The numbers

| Metric | AE975 | Harmonitron |
| --- | --- | --- |
| Price | $19.99 | **$2.99** |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/ae975/id6778279880/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/harmonitron/id6790326853/reviews) |
| Number of ratings | 1 | **2** |
| In-app purchases | No | No |
| Ads | No | No |
| Monetization | Paid | Paid |
| Size | 12 MB | 3 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad, Mac, Vision Pro** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Christian Thompson](https://appshunter.io/developer/1511795684) | [Konstantin Torsten Schutz](https://appshunter.io/developer/6778600016) |

## What reviewers say

### AE975

[App page](https://appshunter.io/ios/app/ae975/id6778279880)

Enhance audio tracks with presence, articulation, and density using a parallel processing path. This AUv3 audio effect offers subtle polish and detailed control for mixing and mastering.

**Highlights:** Parallel processing with sidechain, Sound-shaping controls (Focus, Enhance, Texture, Saturation, Density), AUv3 compatibility for DAWs, Standalone companion host app, 92 categorized factory presets, iCloud preset sync, MIDI Learn for controller mapping

**In-app purchases:** none


### Harmonitron

[App page](https://appshunter.io/ios/app/harmonitron/id6790326853)

This app creates a rich, swirling harmonic tremolo effect, distinct from standard volume pulsing. It splits sound into low and high bands, modulating them in opposite phases for a lush, phaser-like character. Apply it to various instruments or full mixes as a standalone app or AUv3 effect.

**Highlights:** True harmonic tremolo with anti-phase modulation, Voice control for morphing between classic and harmonic tremolo, Split & Tilt for band crossover and balance, Tube Drive and tone shaping, Adjustable Rate and LFO Shapes, Tempo Sync with musical note divisions, Stereo Spread for auto-pan and width

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

**In-app purchases:** none


## Frequently asked questions

### Is AE975 free?

AE975 costs $19.99, with no in-app purchases.

### Is Harmonitron free?

Harmonitron costs $2.99, with no in-app purchases.

### Which has better reviews, AE975 or Harmonitron?

AE975 and Harmonitron are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.

### Do AE975 or Harmonitron have ads?

Neither AE975 nor Harmonitron shows ads.

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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.*