# QVox — Four Voice Pitch Shifter

> Audio effect app for creating harmonies and rhythmic sequences with pitch shifting and delay. (iPhone/iPad app by Eventide.)

- Source: https://appshunter.io/ios/app/qvox/id1488786684 (this page in markdown: same URL + `.md`)
- Developer: [Eventide](https://appshunter.io/developer/546518026)
- Category: Music, Entertainment
- Price: $7.99 (on sale, was $14.99)
- Rating: 4.30/5 from 17 App Store ratings · 11 written reviews indexed
- Age rating: 4+
- Requires: iOS 11.0 · 22 MB
- Released: 2019-12-11
- Data updated: 2026-08-25
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/qvox/id1488786684/reviews.md

## What is QVox?

QVox is a creative audio effect that transforms vocals, guitars, drums, and synths into four independent voices. Create beautiful harmonies, widen instruments and design groovy rhythmic sequences with diatonic pitch shifting and delay. You can choose the key, scale, and each voice’s pitch and delay interval, with the ability to alter any parameters in real-time using the Ribbon controller.  

Features:

- Four independent voices (labeled as A, B, C, D) with diatonic pitch shifting and delay.
- Select Key and Scale to create harmonies that coincide with your compositions or use the Learn button to set the key by the incoming note you play.
- Group the four delays so that they are evenly spaced or spread out.
- Sync the delays to tempo, or a value of your own choosing.
- The Ribbon controller allows for dynamic modification of several knobs at once to easily morph between settings.
- Factory presets help get you started or create your own User presets.
- Mixlock helps when auditioning different presets by enabling a global Mix value that will remain constant for every subsequently loaded preset.
- Available as an Audio Units AUv3 plug-in and Standalone App.

## Key features

- Four independent voices with pitch shifting and delay
- Selectable key and scale for harmonies
- Adjustable delay intervals and tempo sync
- Real-time parameter control with Ribbon controller
- Factory and user presets
- Mixlock for consistent auditioning
- AUv3 plugin and Standalone app

## Recent user reviews (10 of 11)

All indexed reviews: https://appshunter.io/ios/app/qvox/id1488786684/reviews.md

### 5/5 — Works!

*2026-01-13*

Works well on my Trumpet, 95% as happy as the Boss pedals I’ve been using for 25 years, with a little Tweaking of my tone Pre and Post this plug in I might get it to 100%. 
One thing that’s killing me though is I can set a Wholetone scale or Locrian but not just a Pentatonic (or even better a 6 note scale like Dm with no 6th, C major with no 7th) which is literally 100million times more useful in almost all western music. If I find a Harmoniser with custom scales or where I can map individual response for each note I play I’ll have to swap to it but would love to stick with this.

### 1/5 — No Chromatic Pitch Shift

*2024-05-12*

Just purchased this and am mad! I should have read the reviews. No chromatic pitch shift mode is available. How could you omit such a basic feature. This app is useless to me and I would like a refund.

### 1/5 — Pitch shift quality not great

*2023-09-22*

Too bad there‘s no demo for this. This effect isn‘t usable for me because the pitch shifting is pretty unstable sounding. My HX stomp does pitch fx better.

### 3/5 — Nice, but limited use

*2023-04-02*

This is a generally well designed app with very musical delay and panning options. The problem is that there is no chromatic pitch shift option. As someone who primarily improvises, this is a no-go as I’m constantly changing keys and cannot stop to think about which key I’m in to adjust QVox. Furthermore, I generally want each note to harmonize in the same way regardless of the key. 5 stars when chromatic pitch shifting is added.

### 5/5 — Nice pitch shifter

*2022-05-02*

This app offers the best tracking and lowest latency I’m aware of in IOS. It also doesn’t use too much cpu.

### 5/5 — One of the best effects out there!

*2021-05-16*

But there is one problem with cubasis. MIDI instruments get more and more latency over time. Don’t know if it’s cubasis or your plug-in. Would you mind helping Steinberg to find a solution? Or does it have nothing to do with your plugin?

**Developer response:** Hey, thanks for the kind review! QVox does add some latency, but it's reported to the host (Cubasis), which should handle latency compensation. This would be something Steinberg would need to fix on their end, if they are not handling it correctly.

### 1/5 — Lacks manual features!

*2021-02-09*

This could be an amazing app but lacks some ESSENTIAL features, otherwise is fun to play to the presets but once you need to fine tune parameters these are the most important features missing:
1: Diatonic chromatic scale mode!: If you want to set specific intervals and want them to remain CONSTANT Chromatically you CAN’T do that here, say you want a 4th and a 6th above your original note and keep the same intervals chromatically, the scale you choose will keep changing the intervals... This could be resolved if this app had an option to chose “cents” for pitch shift instead of just “musical intervals”, that way I could choose to have the same exact intervals regardless of the note... A classic example for this would be trying to replicate Steve Vai’s “Ballerina 12/24”, that patch is a simple 4th and 6th above with 180 and 360 ms delay respectively on each interval BUT if you set those settings here you CAN’T play the song as Vai’s song modulates all the time and doesn’t have a root note so you’ll end up with notes changing where the intervals should remain static...

2: Independent delay times for each pitched voice: CAN’T do that here

3: Pan control for each pitched voice: CAN’T do that either, voices are always panned hard left-right

4: Saving user presets has an error where you CAN’T re-save or overwrite your presets!: If you just fine tuned your preset and want to save it it’ll ask you to save into a a DIFFERENT slot and if you use the same name it’ll still save it into a new different slot adding automatically a number so you’ll soon end up with a LONG list of repeated presets as you CAN’T erase them either!

Eventide developers: please at least reply and hopefully you can fix those bugs and improve on those simple things

**Developer response:** Hi, we see you also brought this up on our forum and we've been corresponding there, but we wanted to reply here in case other users have the same requests/concerns:

Your points 1, 2, and 3 are all great requests. However, this is simply not the nature of the QVox app - it was designed to be a diatonic pitch shifter based around key and scale, with a limited control set. Sorry about that.

Point #4, this is something we have logged in our system and plan to address it in a future update.

### 4/5 — Stability problem

*2020-03-19*

Great idea.  Would be five stars, but I t’s let down by stability issues as it stops working if left unused for more than 10 minutes and you need to close the app and restart.
When that issue is resolved it will be a 5 star app!

Update: 
iPad Pro 10 running iOS 13.3.1 
Fault occurs both in freestanding mode and with AUM after around 10 mins
Same fault on iPhone 6S and 6 both running iOS 13.3.1

No link for QVox support on the Eventide website.

**Developer response:** Hi, sorry to hear about the issue. Please email support at eventide dot com with your version of iOS, what host app you’re using, and your buffer rate and sample size, and we’ll work to resolve the issue. Also, please make sure you have the latest updates of all apps.

### 5/5 — Wow, low latency

*2020-02-21*

I’m very impressed by the low latency processing of this effect. It’s akin to having a hardware pedal (using iPad Pro 10.5, hosting in AUM). With an audio interface, I can make a believable 12 string guitar sound (with 12 step octaves) that tracks with nearly no lag/delay, unlike some other harmonizer apps (which I also like/respect, but have more delay & stutter). Multi tonals (3rds, 5ths, 7ths) track in nearly real time as well. A really useful effect to add to your arsenal. Eventide really delivers with their iOS Auv3 effects.

### 5/5 — Stable Pitch Shifter with Endless Possibilities

*2020-01-17*

This is an absolutely beautiful effect, perfect for everything from huge octave-split lead and bass sounds to one-note chords and melodies. The fixed 100% stereo pan takes a bit of getting used to but doesn’t seem to cause phase issues if you mix to mono.

## Frequently asked questions about QVox

### What is QVox?

QVox is a creative audio effect that transforms vocals, guitars, drums, and synths into four independent voices. It allows for diatonic pitch shifting and delay to create harmonies and rhythmic sequences.

### What devices does QVox support?

QVox is available for iPhone, iPad, and iPod. It functions as an Audio Units AUv3 plug-in and a Standalone App.

### How much does QVox cost?

QVox is a paid application, priced at $14.99. There are no in-app purchases or advertisements associated with this app.

### What is the age rating for QVox?

QVox has an age rating of 4+, making it suitable for a wide range of users. The app was released on December 11, 2019, and last updated on March 6, 2024.

### Can I control QVox parameters in real-time?

Yes, QVox features a Ribbon controller that allows for dynamic modification of several knobs simultaneously. This enables easy morphing between different settings for expressive control.

### Does QVox have ads?

No, QVox does not contain advertisements. It is a paid application that offers its full functionality without interruptions from ads.

### How often is QVox updated?

QVox was last updated on March 6, 2024, with version 1.0.13. This indicates ongoing support and potential for future improvements and bug fixes.

### What is the user sentiment for QVox?

QVox has a rating of 4.3 stars from 16 ratings, suggesting generally positive user sentiment. Users appreciate its creative audio manipulation capabilities.

## Version history (last 5 releases)

### 1.0.13 — 2024-03-06

- Fixes a bug where Touch and Latch automation were not correctly written in Logic Pro for iPad.
- Fixes a bug where the Standalone background image would not render correctly on some iOS devices.
- Adds a MIDI Mute description to the help screen.
- Removes Inter-App Audio support, as it has been deprecated by Apple. Audio Unit v3 can be used instead.
- Other internal bug fixes and improvements.

### 1.0.9 — 2022-03-23

Added MIDI AUv3

### 1.0.7 — 2022-03-07

Added support for iPad mini 6 screen resolution.

### 1.0.6 — 2020-10-20

Fix for issue that affected ribbon mappings.

### 1.0.5 — 2020-10-12

Fixed an issue where clip meters did not always illuminate when clipping had occurred.

Improved preset flyout behavior in the AUv3 plugin. It now remains open when resizing the plugin window.

Added a MIDI-specific version of the AUv3, in addition to the non-MIDI compatibility version.

Added a MIDI mute function to the MIDI-enabled AUv3.

Improved scrolling for the user guide on iOS 12.

## Apps similar to QVox

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| --- | --- | --- | --- |
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## More apps by Eventide

- [H9 Control](https://appshunter.io/ios/app/h9-control/id568128041)
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- [UltraTap Delay](https://appshunter.io/ios/app/ultratap-delay/id1463784516)
- [MicroPitch](https://appshunter.io/ios/app/micropitch/id1463785645)
- [Rotary Mod](https://appshunter.io/ios/app/rotary-mod/id1463786028)
- [ShimmerVerb](https://appshunter.io/ios/app/shimmerverb/id1463786346)

All apps by Eventide: https://appshunter.io/developer/546518026

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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 2026-08-25.*