# Delay Line vs Harmonitron

The clearest difference is price: Delay Line at $1.99 against Harmonitron's $2.99. On rating, ratings volume, ads and in-app purchases there is nothing between them.

Delay Line costs $1.99 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 Delay Line against 5.0 for Harmonitron. Both are backed by a comparable volume of ratings — 2 and 2 respectively.

## The numbers

| Metric | Delay Line | Harmonitron |
| --- | --- | --- |
| Price | **$1.99** | $2.99 |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/delay-line/id6776276739/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/harmonitron/id6790326853/reviews) |
| Number of ratings | 2 | 2 |
| In-app purchases | No | No |
| Ads | No | No |
| Monetization | Paid | Paid |
| Size | 7 MB | 3 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Callback Audio, LLC](https://appshunter.io/developer/1896220942) | [Konstantin Torsten Schutz](https://appshunter.io/developer/6778600016) |

## What reviewers say

### Delay Line

[App page](https://appshunter.io/ios/app/delay-line/id6776276739)

This audio effect app offers a high-quality digital delay with smooth parameter control for musical echoes. It's designed to add depth and space to your sound without unwanted noise.

**Highlights:** High-quality digital delay, Smooth parameter interpolation, Feedback control, Musical echoes, Linear interpolation for delay time, Comprehensive parameter smoothing

**Features:** Vision Pro support

**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 Delay Line free?

Delay Line costs $1.99, with no in-app purchases.

### Is Harmonitron free?

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

### Which has better reviews, Delay Line or Harmonitron?

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

### Do Delay Line or Harmonitron have ads?

Neither Delay Line 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.*