# Pitch Shift (Key Change) — 31 bands EQ / Export audio

> Real-time pitch shifter and 31-band equalizer for music playback and processing. (iPhone/iPad app by Loop-Sessions.LLC..)

- Source: https://appshunter.io/ios/app/pitch-shift-key-change/id670120398 (this page in markdown: same URL + `.md`)
- Developer: [Loop-Sessions.LLC.](https://appshunter.io/developer/414215366)
- Category: Music, Utilities
- Price: Free with in-app purchases
- Rating: 4.40/5 from 85 App Store ratings · 62 written reviews indexed
- Age rating: 4+
- Requires: iOS 16.0 · 5 MB
- Languages: American English, Japanese
- Released: 2013-07-16
- Data updated: 2026-08-30
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/pitch-shift-key-change/id670120398/reviews.md

## What is Pitch Shift (Key Change)?

[ Important Notice ]
With this version (7.0.0), we are ending regular updates for this app.
You can continue using this app, but future development and updates will continue in 'Audio Unit Player', which includes this app's functionality.
'Audio Unit Player' is a free app that supports both speed and pitch adjustment and includes a 31-band equalizer with no band restrictions.

Data Transfer:
File information registered in this app is not transferred automatically to 'Audio Unit Player'. Use the Files app to manually copy any files you need.";
================================================

This app is a music player that can process the following effects in real time.
- Pitch shift (-1 ~ +1 octave)
- 31 band equalizer (required In-App Purchase)
- Reverb
- AUv3 (Audio Unit v3) host

If you play a musical instrument or sing a song, this app should be supported by you higher / lower the pitch.

[Function]
- Perform pitch shift in real time (-12 - +12).
- 31 bands EQ (Hz: 20, 25, 31.5, 40, 50, 63, 80, 100, 125, 160, 200, 250, 315, 400, 500, 630, 800, 1k, 1.25k, 1.6k, 2k, 2.5k, 3.15k, 4k, 5k, 6.3k, 8k, 10k, 12.5k, 16k, 20k).
(Initiality, only 3 bands are available. It's possible to use 31 bands by In-App Purchase.)
- EQ preset (Abundant Built-in Presets / Custom Presets) (required In-App Purchase).
- Reverb: Adjustable decay time (Low freq, High freq) / 13 presets
- Reverb preset (Built-in Presets / Custom Presets)
- Can be used as an AUv3 host.
- A-B loop playback.
- Center Cancel / Center Emphasis.
- Lch, Rch each mute.
- Quick fast forward, rewind (specify the number of seconds).
- Check and set current position graphically in wave view.
- Supports Auto-Lock ON/OFF.
- Supports background playback.
- Supports export (file writing) function (Each effect (pitch/EQ) value set for each song is also reflected. The range specified in the loop section is output.)

In addition to loading music data included in the standard "music" app, it also supports the function to import audio files from other apps ("Voice Memos" etc.).

[How to import from "Voice Memos"]
1. Start the app "Voice Memos" and tap the mark "..." of the file to be imported from the list.
2. Tap "Share" on the sheet displayed from the bottom.
3. Tap "More" found by scrolling the displayed list of sharing destination apps to the right.
4. Select "Pitch Shift" if available. The file is copied to this app.

================================================
[Note 1]
This application will not be able to read songs of the following formats.
- Songs from Apple Music, iCloud, iTunes Match
- Songs that are protected by digital copyright (DRM)

[Note 2]
Depending on the state of your device, your custom AUv3 effects may not appear in the list.
As a solution, you can solve the problem by starting "GarageBand" once and restarting this app.
================================================

## Key features

- Real-time pitch shifting
- 31-band equalizer
- AUv3 effects support
- A-B loop playback
- Center Cancel/Emphasis
- Audio file export
- Background playback

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| 31 bands equalizer | $0.99 | one-time |
| Always remove banner ads. | $2.99 | one-time |


## Recent user reviews (10 of 62)

All indexed reviews: https://appshunter.io/ios/app/pitch-shift-key-change/id670120398/reviews.md

### 2/5 — Leider keine AuV3 Integration dafür zig Tracker

*2026-06-27*

App selbst kann nicht als iAA oder AuV3 geladen werden. Jedoch können AuV3 Plugins in der App  geladen werden. Furchtbar dass man die AdvertisingTracker einzeln deaktiviert werden müssen. Geht gar nicht.

### 5/5 — Hop by

*2025-12-30, version 6.2.5*

Dizzy

### 1/5 — は？

*2025-08-23*

曲の追加できんやん笑

**Developer response:** コメントありがとうございます。
本アプリは、Apple Music, iCloud, iTunes Match 経由のファイル、およびデジタル著作権（DRM）で保護されているファイルは読み込むことはできません。ご了承ください。
端末内のオーディオファイルに対して追加することができます。もしそれでも追加できないとなりますと、そちらの端末環境に何らか問題がある可能性がございます。
ご確認ください。よろしくお願いいたします。

### 1/5 — Waste of time and money

*2025-05-21, version 6.2.3*

If it would work it would be great

### 1/5 — Beware

*2025-02-06, version 6.1.0*

It would only import music from Apple Music. No use to me.
Uninstalled.

### 2/5 — アップデート

*2024-12-05*

クラッシュする。

**Developer response:** コメントありがとうございます。
Ver.6.2.4 にて、再生中に再生位置を移動させたときにクラッシュすることがある点について対策を施しました。
アップデートしていただき、試していただければと思います。
よろしくお願いいたします。

### 5/5 — I love this app!

*2023-12-28, version 6.0.1*

31 Band EQ, excellent and crisp pitch shifting. Multitool in one all for a very affordable price. I usually don’t write reviews either, so if you’re considering downloading then just do it.

### 5/5 — fix a crash

*2023-10-29, version 6.0.0*

please  fix a crash when opening longer files?

### 2/5 — 素晴らしすぎる

*2023-05-30*

無料の範囲だけでも信じられないくらい便利です

**Developer response:** コメントありがとうございます。
よろしくお願いいたします。

### 4/5 — Fix this bug!

*2023-01-15, version 6.0.0*

If I hit the skip back/forward buttons multiple times, the app still crashes even though there was a fix for playback 5 months ago. I’d you are reading this, please fix your app immediately so that I won’t complain again!

## Frequently asked questions about Pitch Shift (Key Change)

### What does this app do?

This app is a music player that offers real-time audio processing. It allows you to pitch shift music by up to an octave and apply a 31-band equalizer. It also supports AUv3 effects, loop playback, and exporting your processed audio.

### How do I unlock the full 31-band equalizer and presets?

The full 31-band equalizer and abundance of EQ presets are not available by default. You can unlock these advanced features by making an In-App Purchase within the application.

### Can I use this app with Apple Music or DRM-protected songs?

No, this application cannot read songs from Apple Music, iCloud, or iTunes Match. It also cannot play songs that are protected by digital copyright (DRM).

### How can I import audio files into the app?

You can import music data from your standard 'music' app. Additionally, you can import audio files from other applications like 'Voice Memos' by using the share function and selecting this app as the destination.

### What are the main use cases for this app?

This app is ideal for musicians and singers who want to adjust the pitch of their instrument or vocals. It's also useful for audio enthusiasts who want to fine-tune the equalization of their music or experiment with different audio effects.

## Version history (last 5 releases)

### 7.0.0 — 2026-08-25

[ Important Notice ]
With this version (7.0.0), we are ending regular updates for this app.
You can continue using this app, but future development and updates will continue in 'Audio Unit Player', which includes this app's functionality.
'Audio Unit Player' is a free app that supports both speed and pitch adjustment and includes a 31-band equalizer with no band restrictions.

Data Transfer:
File information registered in this app is not transferred automatically to 'Audio Unit Player'. Use the Files app to manually copy any files you need.";

### 6.5.0 — 2026-08-18

- Added Reverb effect (supports custom presets).
- Updated the 31-band EQ UI (iPhone: changed screen design; iPad: moved to a dedicated screen).

[ Important Notice ]
The next update (Ver. 7.0.0) will be the final regular update for this app.
You can continue using the app, but future development will move to another app.
Details will be announced in the next update.

### 6.4.0 — 2026-08-14

Supported Custom Equalizer Presets  (required In-App Purchase).
In addition to the standard presets, you can now save your own customized EQ settings.

### 6.3.0 — 2026-07-26

Added support for multiple playlists. You can now switch between playlists using tabs.

### 6.2.8 — 2026-03-22

Fixed issues with playback stability.

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All apps by Loop-Sessions.LLC.: https://appshunter.io/developer/414215366

## Related topics

[pitch shift](https://appshunter.io/ios/topics/pitch-shift) · [audio pitch change](https://appshunter.io/ios/topics/audio-pitch-change) · [bitcrusher](https://appshunter.io/ios/topics/bitcrusher) · [pitch correction audio](https://appshunter.io/ios/topics/pitch-correction-audio)

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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.*