Auto-Key | Music key detection

Name: Auto-Key | Music key detection
Rating: 3.8 (97 reviews)
Author: Antares Audio Technologies, LLC

By: Antares Audio Technologies, LLC App

Music key and scale detection

Overview

Version:

1.1.0

Last updated: 2022-01-25

Ranking

#147,554 ▼ 212

Overall

Features & Capabilities

Auto-Key detects the musical key and diatonic key from audio in seconds and lets you share and sync with Auto-Tune sessions in your DAW. It captures a few seconds of sound to determine the most likely key.

Use Auto-Key Mobile to detect key from any audio source—speakers, acoustic instruments, or voice. Tap the Auto-Key logo to reveal the key. Developed by Antares, inventors of Auto-Tune.

User Growth & Download Statistics

App Music & Audio AI

By:

Antares Audio Technologies, LLC

Rating:

3.80

(97)

Version:

1.1.0 Last updated: 2022-01-25

Version code:

845632568

Creation date:

2021-08-24

Compatible devices:

Size:

38.17MB

URLs:

Full description:

Source:

Apple Apps Store

Data ingested on:

2026-09-26

Compare stats and ranking:

Ranking

# 147,554 ▼ 212

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

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Developed by:

Antares Audio Technologies, LLC

Apple Apps Store

https://apps.apple.com/us/app/auto-key-music-key-detection/id1559061303

User Reviews

Users like the app for easy key detection, a visible piano keyboard, and Auto-Tune workflow integration, plus the scales feature and ease of jamming. However, frequent complaints focus on mandatory sign-in/privacy concerns, inconsistent/inaccurate key detection (especially for non-major/minor modes), reliability and volume issues, and paywalls that limit free use.

Pros

Easy-to-use with a simple, quick key-detection workflow and a keyboard view that helps beginners
Useful for vocals and music production, and it integrates with Auto-Tune smoothly
Generally accurate enough for many songs and works well on mobile
Scales feature adds useful music-theory tooling
Helpful for jamming with tracks (e.g., Spotify) and collaborating with other musicians

Cons

Requires an account and has data-sharing concerns; users report being blocked or asked to sign up and noting lack of Sign in with Apple
Key detection is often inaccurate or inconsistent, especially with modal scales (e.g., misidentifying Bb Dorian as Ab Major)
Reliability issues like intermittent failures or very low/ inaudible output and occasional unsatisfactory performance
Free usage is limited by gating or paywalls (blocked after several uses or prompted to pay)