# Discord4 — Dual Pitch-Shifting Delay

> Stereo pitch-shifting delay with vintage, clean, and granular algorithms. (iPhone/iPad app by Audio Damage, Inc..)

- Source: https://appshunter.io/ios/app/discord4/id1345946446 (this page in markdown: same URL + `.md`)
- Developer: [Audio Damage, Inc.](https://appshunter.io/developer/1248448317)
- Category: Music
- Price: $8.99
- Rating: 4.70/5 from 29 App Store ratings · 18 written reviews indexed
- Age rating: 4+
- Requires: iOS 9.3 · 12 MB
- Released: 2018-02-24
- Data updated: 2026-09-09
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/discord4/id1345946446/reviews.md

## What is Discord4?

Discord4 is the latest version of our most popular and long-lived product, our Discord stereo pitch shifter. Originally modeled from the H910, Discord has long since become its own effect and a studio standby, and this version includes major additions to further stretch its capabilities. This application includes a stand-alone version (with Inter-App Audio) and an AUv3 effect for use in hosts that support that format, such as Beatmaker 3, AUM, Cubasis, and Garageband. A full PDF manual is available at the Audio Damage website. 

Discord4 consists of three separate algorithms: a "vintage" mode (the original Discord algorithm, modeled on the Eventide H910 and H949), a "clean" mode for more modern shifting sounds, and a "granular" mode for experimental effects. Each mode has its strengths, depending on the input material, and Discord3 has a broad palette of capabilities as a result. The P1 and P2 algorithms have full control over the buffer (window) size of the shift effect, for fine tuning the shift to the input signal, or for stranger sound effects. At the extremes of the six-octave shift range, some truly strange aliasing and artifacts can be had with this control. 

Discord4 retains its pair of tempo-synced delays and bandpass filters from previous versions, and adds a reverb in the feedback loop (for easy access to "shimmer" effects). We have also replaced the modulation sources from the original with our all-new FLFO (Flexible LFO) design. Panorama controls are included to control the stereo width of the wet signal. Finally, soft saturation and limiting have been added or improved throughout the signal path, for an overall improved sound and added vintage-style warmth, and to allow for extreme feedback experiments without fear of overloading your DAW's channel.  

Features

• Pitch Shifting: Discord4 contains a pair of shifters with three separate algorithms (Vintage, Clean, and Granular) for different styles of pitch shifting. 

 • Buffer Size Control: The P1 (Vintage) and P2 (Clean) algorithms have a Buffer Size control, from 32 to 2048 samples, for fine-tuning the pitch shifting effect. 

 • Delay: Tempo-synced or free-running delays with feedback, cross-feedback, and a sophisticated bandpass filter.

• Reverb: A simple stereo reverb is added to the feedback path, for "shimmer" effects and further sound exploration. 

 • Modulation: Two of our new FLFO (Flexible Low-Frequency Oscillator) with tempo sync and an arbitrary waveform, capable of a nearly infinite number of modulation shapes using only three controls. 

 • True Stereo Operation: Discord4 has a true stereo signal path, with entirely independent control over each side, finishing with panorama settings for stereo width. 

 • MIDI Note Control: Six octaves of pitch-shifting can be controlled with MIDI note input. 

• All-New GUI: Vector-based resizable user interface.

• Presets: Cross-platform XML-based preset manager.

## Key features

- Three pitch-shifting algorithms (Vintage, Clean, Granular)
- Tempo-synced and free-running delays
- Reverb in feedback loop for shimmer effects
- Flexible LFO modulation
- MIDI note control for pitch shifting
- True stereo operation with panorama controls
- Resizable vector-based GUI

## Chart rankings

- #112 in Top Paid · Music (US App Store)

## Recent user reviews (10 of 18)

All indexed reviews: https://appshunter.io/ios/app/discord4/id1345946446/reviews.md

### 1/5 — Broken in Logic Pro

*2023-07-17*

Won’t process sound in Logic Pro, so now useless until fixed.

### 3/5 — Crashes GarageBand

*2021-11-10*

I can’t use this on my iPad mini 5th generation as it crashes GarageBand every time. Works fine in NanoStudio 2 though.

### 5/5 — Wonderful, but mind:

*2020-12-04*

Probably after some update, about half of the presets (factory and users as well) were producing the same kind of unbearable squezzy sound, far from what was expected. Contacting Audiodamage several times, even sending a video, never brought the solution, that I finally found myself: the cause of this bug is the sync. funtion. When one or both sync. are on, you get this oddity. How come most of the presets got synced, as I do not use this function?
So now, I got the wonders of Discord4 back. Such a relief!

### 1/5 — No funciona en iPhone 6

*2020-11-25, version 4.0.10*

No funciona en iPhone 6, ni siquiera se abre la app, espero me devuelvan el importe

### 2/5 — Cool delay but old sessions are broken

*2020-05-20*

Something updated and all my old sessions are broken, ahh well, modern life eh?

Still a cool plugin, but don’t get to attached to anything kids.

### 5/5 — Filter bypass

*2020-03-10*

The app is great just wish you can bypass the filter section. Im using it in Beatmaker 3. The problem I’m having is that in order to slow down Samples to give it that GROSS BEAT sound. You have to create a new track and save the samples in a new bank. Then you have to pitch those down and copy the midi over which is a long process. With this app you can just pitch the track down with Automation and be done with it but you loose some the sound because you can’t bypass the filter. I’ve tried using TURNADO but you get popping delay sound.

### 5/5 — No need to update?

*2020-02-23*

This.has been running smoothly since I got it.
So there's no need for me to update,

Use it a lot on drums it adds more life to a basic pattern 

Great app.....love it....🙏

### 5/5 — great fx app !

*2019-11-12*

But i am having an issue when reloading sessions in AUM.
The pitch controls are frozen, so i have to eject and reload Discord4 to get them work again.

### 2/5 — Not working

*2019-11-11*

Makes a glitchy sound and the daw app stops working.

### 1/5 — Last update is not working properly

*2019-10-12, version 4.0.10*

Neither AB3 or AUM projects with previous discord version recognize the app, it must be reopened loosing the settings

## Frequently asked questions about Discord4

### What is Discord4's primary function?

Discord4 is a stereo pitch-shifting delay application designed for creative audio manipulation. It offers three distinct algorithms for various pitch-shifting styles, along with tempo-synced delays and modulation capabilities.

### What are the different pitch-shifting modes in Discord4?

Discord4 features three modes: 'vintage' (modeled after Eventide H910/H949), 'clean' for modern sounds, and 'granular' for experimental effects. Each mode offers unique sonic characteristics.

### Can Discord4 be used with other music apps?

Yes, Discord4 includes a stand-alone version with Inter-App Audio support and an AUv3 effect. It is compatible with hosts like Beatmaker 3, AUM, Cubasis, and Garageband.

### How does Discord4 handle stereo width?

Discord4 provides true stereo operation with independent control over each side. It includes panorama controls to adjust the stereo width of the wet signal, allowing for detailed spatial effects.

### What kind of modulation options does Discord4 offer?

Discord4 utilizes its new FLFO (Flexible LFO) design, offering tempo sync and arbitrary waveforms. This allows for a wide range of modulation shapes and complex sonic textures.

### Is Discord4 suitable for live performance?

With its MIDI note control for pitch shifting and flexible effects, Discord4 can be a valuable tool for live performance. The resizable GUI also aids in usability during live settings.

### How often is Discord4 updated?

The latest version of Discord4 is 4.0.10, which was last updated on October 9, 2019. While updates are not frequent, the app is stable and feature-rich.

### What is the price of Discord4?

Discord4 is available for a one-time purchase of $8.99. There are no in-app purchases or subscriptions associated with this application.

## Version history (last 3 releases)

### 4.0.10 — 2019-10-09

>> MIDI Input added. You can now use the MIDI shift feature just like the Desktop version; assuming your host allows MIDI to insert effects (many do not) you can assign a note MIDI input to Discord and "play" the pitch shift, just like the keyboard accessory for the H910. 

>> Full rebuild with all current SDKs and APIs. We had to refactor some things to bring Discord up to date and running smoothly.

### 4.0.8 — 2018-08-16

Updated to all current SDKs, bug with sync buttons in upcoming iOS fixed.

### 4.0.7 — 2018-02-24

No release notes.

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## More apps by Audio Damage, Inc.

- [Grind Distortion](https://appshunter.io/ios/app/grind-distortion/id1249816007)
- [Eos 2](https://appshunter.io/ios/app/eos-2/id1252122327)
- [Dubstation 2](https://appshunter.io/ios/app/dubstation-2/id1253069666)
- [Replicant 2](https://appshunter.io/ios/app/replicant-2/id1261900553)
- [Pumphouse](https://appshunter.io/ios/app/pumphouse/id1270238019)
- [Axon 2](https://appshunter.io/ios/app/axon-2/id1289090729)

All apps by Audio Damage, Inc.: https://appshunter.io/developer/1248448317

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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 2026-09-09.*