# Midiflow Transposer (Audiobus) — Note shifter

> Audiobus MIDI effect app for transposing notes by octaves and half-tones. (iPhone/iPad app by Johannes Doerr.)

- Source: https://appshunter.io/ios/app/midiflow-transposer-audiobus/id1175575102 (this page in markdown: same URL + `.md`)
- Developer: [Johannes Doerr](https://appshunter.io/developer/622204117)
- Category: Music, Entertainment
- Price: Free
- Rating: 4.30/5 from 7 App Store ratings · 3 written reviews indexed
- Age rating: 4+
- Requires: iOS 10.2 · 5 MB
- Languages: American English
- Released: 2017-04-03
- Data updated: 2026-08-18
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/midiflow-transposer-audiobus/id1175575102/reviews.md

## What is Midiflow Transposer (Audiobus)?

This simple MIDI effect app for Audiobus 3 allows you to transpose notes. You can shift by octaves and half-tones. This is useful if you want play an external keyboard in a different tone. You can also use it to create harmonies, i.e. create a second voice in an interval. Since this app is so essential, you can get it for free.

+ Shift notes in half-tone steps
+ Shift notes in octave steps
+ Use multiple instances of this effect in Audiobus

NOTE: This app requires Audiobus 3. Insert it into one or more MIDI effect ports to affect the data going through the respective pipelines.

## Key features

- Transpose notes by half-tones
- Transpose notes by octaves
- Create harmonies
- Use multiple instances in Audiobus
- Essential MIDI effect

## Recent user reviews (3 of 3)

All indexed reviews: https://appshunter.io/ios/app/midiflow-transposer-audiobus/id1175575102/reviews.md

### 1/5 — Confusing

*2025-01-04*

I’m confused on how to pick notes.
So little reviews lol.

### 5/5 — Does the job!

*2021-02-16*

Perfect.  Does exactly what it claims to do. Thanks!

### 1/5 — One Star

*2018-06-16*

Developer has capitulated to the scourge of the GDPR. Sad.

## Frequently asked questions about Midiflow Transposer (Audiobus)

### Does Midiflow Transposer have ads?

No, Midiflow Transposer is completely ad-free, allowing for an uninterrupted music creation experience.

### What is the rating for Midiflow Transposer?

Midiflow Transposer has a rating of 3.9 stars based on 8 user reviews.

### How often is Midiflow Transposer updated?

The latest version, 1.0.7, was released on May 7, 2024, indicating recent development and support.

### What devices support Midiflow Transposer?

Midiflow Transposer is supported on iPhone, iPad, and iPod, making it accessible across various Apple devices.

### What is the age rating for Midiflow Transposer?

Midiflow Transposer has an age rating of 4+, suitable for a wide range of users.

### Can Midiflow Transposer be used without Audiobus 3?

No, Midiflow Transposer specifically requires Audiobus 3 to function as a MIDI effect within its pipelines.

### What musical intervals can Midiflow Transposer create?

Midiflow Transposer allows for the creation of harmonies by shifting notes in octave and half-tone steps, enabling interval creation.

## Version history (last 5 releases)

### 1.0.7 — 2024-05-07

Compatibility improvements for recent iOS versions

### 1.0.6 — 2020-12-01

Update for iOS 14

### 1.0.5 — 2019-11-28

Update for iOS 13

### 1.0.4 — 2018-06-15

Update for GDPR

### 1.0.3 — 2017-09-14

+ Fixes for iOS 11

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## More apps by Johannes Doerr

- [iMIDIPatchbay](https://appshunter.io/ios/app/imidipatchbay/id622204114)
- [Midiflow](https://appshunter.io/ios/app/midiflow/id879915554)
- [English is Easy – Learn vocabulary with pictures and sound](https://appshunter.io/ios/app/english-is-easy-learn-vocabulary-with-pictures-and-sound/id1056841728)
- [Midiflow Keyboard (Audiobus)](https://appshunter.io/ios/app/midiflow-keyboard-audiobus/id1092870508)
- [Midiflow Splitter (Audiobus)](https://appshunter.io/ios/app/midiflow-splitter-audiobus/id1104669188)
- [Midiflow Limiter (Audiobus)](https://appshunter.io/ios/app/midiflow-limiter-audiobus/id1107244412)

All apps by Johannes Doerr: https://appshunter.io/developer/622204117

## Related topics

[audiobus](https://appshunter.io/ios/topics/audiobus) · [music transposer](https://appshunter.io/ios/topics/music-transposer)

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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 2026-08-18.*