# KQ Voice Plugins — Audio Units

> Audio Units for audio routing, vocoding, pitch shifting, and noise suppression. (iPhone/iPad app by Ryouta Kira.)

- Source: https://appshunter.io/ios/app/kq-voice-plugins/id6450491216 (this page in markdown: same URL + `.md`)
- Developer: [Ryouta Kira](https://appshunter.io/developer/862984358)
- Category: Music
- Price: $7.99
- Rating: 4.80/5 from 12 App Store ratings · 9 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.0 · 3 MB
- Languages: American English, Japanese
- Released: 2023-06-23
- Data updated: 2026-09-05
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/kq-voice-plugins/id6450491216/reviews.md

## What is KQ Voice Plugins?

This is a set of Audio Units including Loopback, Vocoder, Pitch Shifter, and Noise Suppression. A host application that can handle Audio Units is required for use.

Loopback (In/Out/MIDI/Mixer):
Connects to each other and transfers audio between host applications. MIDI signals can also be transferred. Please note that you might not do the recording inter app.

Vocoder:
This effect processes the sound of a synthesizer or other carrier with the input sound (modulator) and outputs it. It creates a so-called robot voice by inputting a voice or other sound.
By default, Saw (sawtooth wave) is specified as the carrier, but it can also be input from a sidechain or Vocoder Input Audio Unit.

Pitch Shifter:
An effect that changes the pitch of the sound.

Noise Suppression:
A noise removal filter using RNNoise. This machine learning filter is optimized for voices.

Gainer:
An effect for adjusting the volume.

## Key features

- Loopback for audio routing
- Vocoder effect for robot voice
- Pitch Shifter for sound modification
- Noise Suppression filter
- Gainer for volume adjustment

## Recent user reviews (9 of 9)

All indexed reviews: https://appshunter.io/ios/app/kq-voice-plugins/id6450491216/reviews.md

### 5/5 — Essential and lifesaving,

*2025-08-02*

Please continue that great work!

### 5/5 — Makes the impossible possible

*2024-10-11*

Have only used the Loopback feature. Well worth the cost for that alone. Allows you to use IAA in Logic and elsewhere that IAA isn't supposed to be welcome. You can also use your DAW instruments in other DAWS with loopback. A little learning curve that can be tamed with tutorials or manual.

### 5/5 — Must have

*2023-08-13*

You need this to record your IAA into Logic!

### 5/5 — I am using it!

*2023-07-06*

Amazing! Thank you very much! 
Great app to connect older apps and bring them back to mix! ))))

### 5/5 — Loopback is terrific!

*2023-07-03*

I’m not a vocalist so I can’t comment on the other parts of this great little suite, but I have to say the Loopback plugin is insanely useful. This little plugin makes it possible to use legacy IAA plugins with DAWs that no longer support them. 

If that last sentence doesn’t make any sense to you then you don’t need that part and should evaluate the vocal FX. But if you ever wished you could stream a drummer track from GarageBand into AUM or Cubasis, or if you wanted to use iELECTRIBE output in Logic Pro, Loopback can do the job. There is nothing else like it on iOS that doesn’t introduce huge latency.

Thanks for this great little gem!

### 5/5 — So happy to see the Loopback plugin!

*2023-07-03*

Out of the blue came this set of plugins and now some of my favourite old IAA apps can send audio into NS2 and Logic Pro.

A game changer, for sure.

### 5/5 — Loopback sparked life into my IAA apps in Logic Oro.

*2023-07-03*

This one’s well worth the money and comes in so handy for transferring audio and midi between DAWs kudos to the dev for pushing out this little gem.

### 5/5 — Great suite of apps worth it for Loopback alone. Top developer!

*2023-07-03*

Loopback is the only way to enable Logic Pro to record Inter App Audio as well as sending midi from track to track. The other apps in the suite are great as well. Extremely responsive developer-some of the updates have come within hours of feedback!  Essential collection of apps.

### 5/5 — Revive those old IAA!

*2023-07-02*

Apple has deprecated Inter App Audio but some apps are still stranded there. The Loopback plugins included in this set let you bring those classic sounds into hosts that might not otherwise support IAA (like Logic Pro). It’s also available on MacOS but I haven’t confirmed whether it works to pipe audio or midi between desktop DAWs like Ableton or Bitwig.

## Frequently asked questions about KQ Voice Plugins

### What is KQ Voice Plugins?

KQ Voice Plugins is a collection of Audio Units that offer features like audio routing, vocoding, pitch shifting, and noise suppression. It requires a host application that supports Audio Units to function.

### What are the main features of KQ Voice Plugins?

Key features include Loopback for routing audio between applications, a Vocoder for vocal effects, a Pitch Shifter to alter sound pitch, Noise Suppression optimized for voices, and a Gainer for volume control.

### How much does KQ Voice Plugins cost?

KQ Voice Plugins is available for a one-time purchase of $7.99.

### What devices support KQ Voice Plugins?

KQ Voice Plugins is supported on iPhone, iPad, and iPod devices.

### What is the age rating for KQ Voice Plugins?

KQ Voice Plugins has an age rating of 4+.

### How often is KQ Voice Plugins updated?

The latest version is 1.3.1, released on 2026-03-21, indicating recent development activity.

### Does KQ Voice Plugins have ads?

No, KQ Voice Plugins does not contain advertisements.

### What is the user sentiment for KQ Voice Plugins?

Users have rated KQ Voice Plugins highly, with an average of 4.8 stars from 12 ratings.

## Version history (last 5 releases)

### 1.3.1 — 2026-03-21

The preferred UI size for the plugins has been set.

### 1.3 — 2025-05-06

Added a "Gainer" plugin. The plugin can adjust the volume gain.

### 1.2.2 — 2023-07-03

v1.2.2
Small changes. (it might improve stability of Loopback when the sample rates differ).

v1.2.1
Fixed an issue that Loopback MIDI went wrong with multiple instances.

v.1.2
Added Loopback Mixer.
Increased the number of ports of Loopback. (4x16)
Improved stability of Loopback.
You can select MIDI channels in Loopback MIDI.
You can use the multople Loopback MIDI with same port. (Max:16)
Added some options.
Other fixes.

### 1.2.1 — 2023-07-02

v1.2.1
Fixed an issue that Loopback MIDI went wrong with multiple instances.

v1.2
Added Loopback Mixer.
Increased the number of ports of Loopback. (4x16)
Improved stability of Loopback.
You can select MIDI channels in Loopback MIDI.
You can use the multople Loopback MIDI with same port. (Max:16)
Added some options.
Other fixes.

### 1.2 — 2023-07-02

Added Loopback Mixer.
Increased the number of ports of Loopback. (4x16)
Improved stability of Loopback.
You can select MIDI channels in Loopback MIDI.
You can use the multople Loopback MIDI with same port. (Max:16)
Added some options.
Other fixes.

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## More apps by Ryouta Kira

- [KQ MiniSynth Legacy](https://appshunter.io/ios/app/kq-minisynth-legacy/id1070850573)
- [KQ Dixie Legacy](https://appshunter.io/ios/app/kq-dixie-legacy/id1330269027)
- [MIDI Recorder with E.Piano](https://appshunter.io/ios/app/midi-recorder-with-epiano/id1448577506)
- [KQ Unotone Legacy](https://appshunter.io/ios/app/kq-unotone-legacy/id1478535391)
- [Piano Modoki](https://appshunter.io/ios/app/piano-modoki/id1509387368)
- [KQ Sampei Legacy](https://appshunter.io/ios/app/kq-sampei-legacy/id1626784865)

All apps by Ryouta Kira: https://appshunter.io/developer/862984358

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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 2026-09-05.*