# Stereo Delay — audio unit plugin

> Audio unit plugin for musically tasteful stereo delay effects with dynamic panning. (iPhone/iPad app by Blue Mangoo Consulting Company Limited.)

- Source: https://appshunter.io/ios/app/stereo-delay/id1444589287 (this page in markdown: same URL + `.md`)
- Developer: [Blue Mangoo Consulting Company Limited](https://appshunter.io/developer/1475107602)
- Category: Music
- Price: $2.99
- Rating: 4.80/5 from 5 App Store ratings · 4 written reviews indexed
- Age rating: 4+
- Requires: iOS 10.3 · 2 MB
- Languages: American English
- Released: 2018-12-01
- Data updated: 2026-08-30
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/stereo-delay/id1444589287/reviews.md

## What is Stereo Delay?

Blue Mangoo Stereo Delay is designed to be the go-to app a for simple, musically tasteful delay effect. The most unique feature is the way it handles panning of delayed echoes in the stereo field. Most stereo delays set different delay times for the left and right channels, resulting in the famous ping-pong effect. The problem with the ping-pong stereo delay sound is that it's too extreme, and our ears quickly tire of hearing the same pattern of left-then-right delay repeated hundreds of times. This plugin does it differently. Instead of setting delay taps at different times panned hard left or right, it always keeps the same delay time setting for both the left and right channels, but it has a unique mixing matrix controlling the feedback between the left and right channels so that each time the echo repeats, it appears in a new place in the stereo field. This is different from a simple panning delay, because older echoes and newer ones can simultaneously appear at different positions in the stereo field. The result is a very natural stereo echo that expands the stereo width of the sound but doesn't sound repetitive or electronic. It's constantly moving and changing.

The wet signal output has low-cut and hi-cut filters. The hi-cut filter tones down the harshness of the delay and makes it sound like natural echoes. The low-cut is especially useful for applying delay without making things sound muddy. At extreme settings the low cut can achieve a lo-fi telephone like delay sound.

The signal flow diagram is as follows:

Filters => LFO controlled pan => Stereo Delay Lines => Mixing matrix => Feedback to Delay Lines

The dry signal (not shown above) bypasses the entire effect. The key difference between this and other delays is the mixing matrix, which is similar to the ones used in feedback delay network reverb effects to mix between multi-channel delays without changing the volume of the sound. It is the matrix (not the LFO) that creates the illusion that the signal has moved to a different location in the stereo field each time it repeats through the delays.

*** THIS IS AN AUDIO UNIT ONLY EFFECT. IT REQUIRES A HOST APP SUCH AS AUM, Audiobus, GarageBand, OR Cubasis. IT DOES NOT RUN AS A STANDALONE APP. ***

## Key features

- Unique stereo panning matrix
- Natural, moving stereo echo
- Low-cut and hi-cut filters
- Feedback control
- LFO controlled pan
- Requires host app

## Recent user reviews (4 of 4)

All indexed reviews: https://appshunter.io/ios/app/stereo-delay/id1444589287/reviews.md

### 1/5 — Ripped Off!

*2026-06-08*

Paid my £2.99 and it doesn't load to the amp.
Just shows a page with control descriptions.
Please refund me!!!

### 5/5 — Top quality delay

*2025-08-09*

This delay is simple, clean, and very very good.

### 4/5 — Not working in beatmaker3

*2021-03-09*

This is one of my favorite plugs. I purchased it in the bundle. This one particularly seems to stop working in sessions out of nowhere. Is there a fix for this?

### 5/5 — Musical at every setting

*2018-12-01*

You can’t find a bad setting in this app. No matter what you do, it’s tasteful, simple, and musical, and yet it’s a sound that I don’t get from other delay plugins.

## Frequently asked questions about Stereo Delay

### What is Stereo Delay?

Stereo Delay is an audio unit plugin designed to provide a musically tasteful and natural-sounding stereo delay effect. It focuses on unique panning of delayed echoes within the stereo field, creating a dynamic and evolving soundscape.

### How does Stereo Delay's panning differ from typical stereo delays?

Unlike ping-pong delays that alternate left and right, Stereo Delay uses a mixing matrix to move echoes to new positions in the stereo field with each repeat. This creates a more natural and less repetitive stereo expansion.

### Does Stereo Delay work as a standalone app?

No, Stereo Delay is an audio unit only effect and requires a host application such as AUM, Audiobus, GarageBand, or Cubasis to run. It does not function as a standalone application.

### What filters are included in Stereo Delay?

Stereo Delay includes wet signal output filters: a hi-cut filter to reduce harshness and a low-cut filter to prevent muddiness. The low-cut filter can also achieve a lo-fi telephone-like delay sound at extreme settings.

### What is the price of Stereo Delay?

Stereo Delay is available for a one-time purchase of $2.99. There are no in-app purchases or subscription fees associated with this application.

### On which devices can Stereo Delay be used?

Stereo Delay is supported on iPhone, iPad, and iPod touch devices. It is designed for use within compatible audio host applications on these platforms.

### How often is Stereo Delay updated?

The latest version of Stereo Delay is 1.0.7, which was last updated on May 28, 2024. This indicates a recent update, suggesting ongoing support and potential for future improvements.

### What is the age rating for Stereo Delay?

Stereo Delay has an age rating of 4+, making it suitable for a wide range of users. This rating indicates that the content is generally considered appropriate for young children.

## Version history (last 5 releases)

### 1.0.7 — 2024-05-28

Bug fixes and performance improvements.

### 1.0.6 — 2021-04-19

1. Fix crash bug after loading about 10s on iOS 14.

### 1.0.5 — 2020-11-03

1. Fixed the crash on Audiobus 3.

### 1.0.4 — 2020-10-02

Shared data between au3 hosts.

### 1.0.3 — 2019-11-05

1. Fix wet gain value on startup.

## Apps similar to Stereo Delay

| App | Rating | Price | Category |
| --- | --- | --- | --- |
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| [TfxReverb](https://appshunter.io/ios/app/tfxreverb/id1529840178) | 4.5 (8) | $4.99 | Music |

## More apps by Blue Mangoo Consulting Company Limited

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- [Stereo Modulator](https://appshunter.io/ios/app/stereo-modulator/id1370816026)

All apps by Blue Mangoo Consulting Company Limited: https://appshunter.io/developer/1475107602

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-30.*