# HarmonyAngel

> MIDI harmony processor

Canonical page: [https://chrome-stats.com/d/id6794364693](https://chrome-stats.com/d/id6794364693)

## Overview

- **ID:** `id6794364693`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Better World Studio
- **Category:** Music
- **Version:** 1.0.1
- **Last updated:** 2026-08-14
- **First published:** 2026-07-30
- **Size:** 5.73 MB
- **Data as of:** 2026-09-16
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/harmonyangel/id6794364693)
- **Website:** [https://bwinnovationtw.github.io/apps/harmonyangel/](https://bwinnovationtw.github.io/apps/harmonyangel/)
- **Privacy policy:** [https://bwinnovationtw.github.io/apps/harmonyangel/privacy.html](https://bwinnovationtw.github.io/apps/harmonyangel/privacy.html)

## Description

Turn one MIDI note or live vocal note into chord-aware harmony with MIDI output, vocal processing, and AUv3 support.

HarmonyAngel is a MIDI and vocal harmony processor for musicians who want one monophonic line to follow the active chord.

Choose chord slots on two performance pages, then play from a MIDI controller or the on-screen piano. For every incoming note, HarmonyAngel can generate descending chord tones below it, align voicings to a chord root, preserve slash-chord roots, and forward aftertouch to the generated harmony.

Turn on Mic Input to sing into HarmonyAngel. The app performs low-latency monophonic pitch detection locally, uses the detected note to create chord-aware MIDI harmony, and provides a live tuner and input-level meter. Premium users can optionally hear pitch-corrected lead vocal and pitch-shifted vocal harmony audio, with selectable pitch detector, pitch shifter, formant, latency, buffer, trigger-level, and trigger-velocity controls.

Use HarmonyAngel standalone with CoreMIDI and the built-in sine synth, or load the AUv3 MIDI processor inside a compatible host. Page controls, progression stepping, hold behavior, custom chord types, selectable MIDI ports, channel routing, keyboard range, display transpose, and velocity shaping are available from the performance UI.

Highlights:
- Two pages of 12 editable chord slots with no-harmony slots
- Built-in chord types, slash roots, and named custom chord types
- Full or partial on-screen piano with touch velocity and aftertouch
- Mic Input with local monophonic vocal pitch detection, tuner, and input-level metering
- Premium pitch-corrected lead vocal and pitch-shifted vocal harmony audio
- Premium single-channel or rotating-channel harmony MIDI output
- Premium AUv3 MIDI processor extension with preservable host state
- Optional built-in sine wave synth for quick testing or standalone use

HarmonyAngel is designed for keyboardists, singers, composers, producers, worship musicians, live performers, and anyone who wants fast chord-aware harmony from simple MIDI or vocal input.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Privacy Policy: https://bwinnovationtw.github.io/apps/harmonyangel/privacy.html

## Rankings

- #1,448,336 — Overall

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Source: [Chrome-Stats](https://chrome-stats.com/d/id6794364693)