# Rainbow Delay — Harmony Generating Delay AUv3

> Polyphonic harmonizing delay effect for music creation and vocal processing. (iPhone/iPad app by Derek Mesecar.)

- Source: https://appshunter.io/ios/app/rainbow-delay/id1634495935 (this page in markdown: same URL + `.md`)
- Developer: [Derek Mesecar](https://appshunter.io/developer/505825864)
- Category: Music, Music
- Price: $0.99
- Rating: 4.64/5 from 11 App Store ratings · 6 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.0 · 17 MB
- Released: 2022-07-28
- Data updated: 2026-06-01
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/rainbow-delay/id1634495935/reviews.md

## What is Rainbow Delay?

Rainbow Delay is a polyphonic harmonizing delay effect unlike any that you've played before. Harmonize full chords with multiple different intervals at once to create colorful soundscapes you didn't know your guitar could create. Program your MIDI controller to control your harmonies and delay in real time. Switch it into Mono mode for vocals and other monophonic instruments. 

F e a t u r e s:
• Fully polyphonic harmonies - WORKS ON ALL CHORDS
• Separate harmonies for real time input and delays
• Delay with feedback, filter, time division and tempo sync
• Creates harmonies above and below the input signal - mix and match them to taste
• All parameters are MIDI programmable
• The stripe in the middle contains buttons that can switch modes, shift intervals and sync to the host tempo
• The colored knobs adjust the volume of the harmonies on the input and the delays
• The gray knobs adjust the delay parameters
• Shift intervals on the fly with automation or MIDI input for greater control over your harmonies
• Mono mode for vocals or monophonic instruments
• Bluetooth MIDI compatible
• iRig BlueBoard compatible
• AUv3

## Key features

- Polyphonic harmonies for all chords
- Real-time input and delay harmonies
- Delay with feedback, filter, and tempo sync
- MIDI programmability for all parameters
- Mono mode for vocals and monophonic instruments
- Bluetooth MIDI and iRig BlueBoard compatible

## Recent user reviews (6 of 6)

All indexed reviews: https://appshunter.io/ios/app/rainbow-delay/id1634495935/reviews.md

### 1/5 — An Elevated Delay

*2025-09-02*

I enjoyed 3D Chorus so much I had to get this,transforms ordinary vanilla.I am having issues currently with using it in AUM.I had a crash in Cubasis3 on iPad I suspect I may have taxed my CPU with a pretty intense project.I can usually spot bugs and avoid them.I have been unsuccessful in identifying it,which is VERY FRUSTRATING because I get wonderful tastes of what this Delay can accomplish.

### 1/5 — Unusable on iPhones&iPads

*2025-07-14*

This thing has not worked for many years! Multiple iPhones,multiple iPad models,different DAW,crash every time! I WANT MY MONEY BACK!

**Developer response:** I just tested it and it works fine - five stars

### 5/5 — I can’t adjust the delay time.

*2024-07-13*

help!  Some kind of glitch. Doesn’t matter which daw. Very frustrating as I really want to use it.

**Developer response:** It does this when tempo sync is turned on. You can turn sync off with the button under the feedback knob if you want to set the delay time manually or choose a subdivision of the daw tempo using the button under the delay time knob.

### 5/5 — Awesomeness

*2022-08-24*

Awe inspiring beautiful sounds - 🤩 wow!   Auv3 And now you added presets for guitar and vocals - pure genius from the developers -LOVE IT !

### 5/5 — Nice 👍

*2022-08-08*

Sounds great love the different sounds you can coax with this super job thanks 🙏!

### 5/5 — Super Responsive Dev

*2022-08-01*

A clever way to add some harmonics

## Frequently asked questions about Rainbow Delay

### What is Rainbow Delay?

Rainbow Delay is a polyphonic harmonizing delay effect that allows users to create complex harmonies with chords and single notes. It offers real-time control over harmonies and delay parameters, making it suitable for both instrumental and vocal applications.

### How much does Rainbow Delay cost?

Rainbow Delay is a paid application, priced at $0.99. This one-time purchase grants access to all its features without any additional in-app purchases or subscriptions.

### What devices does Rainbow Delay support?

Rainbow Delay is compatible with iPhone, iPad, and iPod touch devices. It utilizes the AUv3 audio unit extension, which is supported on compatible iOS devices.

### How often is Rainbow Delay updated?

The latest version of Rainbow Delay is 1.1, which was last updated on August 24, 2022. While update frequency can vary, this indicates recent development and support for the application.

### Can Rainbow Delay be used with MIDI controllers?

Yes, all parameters in Rainbow Delay are MIDI programmable. You can connect MIDI controllers, including via Bluetooth MIDI and iRig BlueBoard, to control harmonies and delay in real time.

### Is Rainbow Delay suitable for vocals?

Yes, Rainbow Delay features a dedicated Mono mode specifically designed for vocals and other monophonic instruments. This allows for precise harmony generation on single vocal lines.

### What makes Rainbow Delay's harmonies unique?

Rainbow Delay is fully polyphonic, meaning it works on all chords and can create harmonies both above and below the input signal. Users can mix and match these harmonies to taste, offering extensive creative possibilities.

### Does Rainbow Delay have ads?

No, Rainbow Delay does not contain advertisements. As a paid application, it offers an uninterrupted user experience without any ad interruptions.

## Version history (last 2 releases)

### 1.1 — 2022-08-24

-presets
-bug fixes

### 1.0 — 2022-07-29

No release notes.

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## More apps by Derek Mesecar

- [Beat-Machine](https://appshunter.io/ios/app/beat-machine/id505825861)
- [Jam Synth](https://appshunter.io/ios/app/jam-synth/id732618765)
- [3D Chorus](https://appshunter.io/ios/app/3d-chorus/id1610943382)

All apps by Derek Mesecar: https://appshunter.io/developer/505825864

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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 2026-06-01.*