---
title: "Key Finder - Analyze any scale - Reviews, Revenue and Downloads in United States | Apple App Store"
description: "Analyze audio files to detect their musical key. Key Finder scans your tracks locally and returns results almost instantly.  Key Finder is an offline utility for key detection. It works directly with "
---

# Key Finder - Analyze any scale — United States
> Detect a track’s key in 1s

![Key Finder App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/fa/9c/54/fa9c541a-8d6f-9fb2-5264-f1baabbd6c48/AdaptiveAppIcon-0-0-1x_U007epad-0-1-sRGB-85-220.png/434x0w.png)

**Developer:** [DELLINGER ARNAUD NICOLAS LOUIS](https://apptail.io/developer/dellinger-arnaud-nicolas-louis-KHjc)
**Category:** Music
**Rating:** 4.3/5 (3 ratings)
**Price:** $6.99
**Bundle ID:** com.eveningkid.key-finder
**Store:** Apple App Store
**Country:** United States
**Version:** 3.6 (released 2026-09-26)
**Original Release:** 2024-12-09
**Languages:** English

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id6738587414)
**AppTail Page:** [https://apptail.io/app/key-finder-analyze-any-scale-OStx/united-states](https://apptail.io/app/key-finder-analyze-any-scale-OStx/united-states)

## Key Finder Description
Analyze audio files to detect their musical key. Key Finder scans your tracks locally and returns results almost instantly.

Key Finder is an offline utility for key detection. It works directly with your files and provides accurate harmonic analysis without needing an internet connection.

Features
• Fast analysis: Detect the key of a track in about a second.
• Key formats: View results in standard musical key, Camelot, or Open Key.
• Batch processing: Analyze multiple tracks at once with low system impact.
• Metadata writing: Save key data directly to your audio file tags for use in DJ software.
• Apple Music & iTunes: Import your own tracks directly from your Apple Music or iTunes library.
• Cross-platform: Buy once and use on Mac, iPhone, and iPad.
• Local processing: All analysis is done on your device. No files are uploaded.

A simple way to find and organize the key of your music library.

## Key Finder Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/d5/22/83/d5228335-d1bc-e662-3923-80b5bbc6b4fa/ios-1.png/1242x2688.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/b6/ef/7a/b6ef7a71-3a87-8423-4f91-52b091ce1626/ios-2.png/1242x2688.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/70/fb/e2/70fbe2f2-9a04-4126-84c8-42cc8d1d8cc9/ios-3.png/1242x2688.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/fb/76/c1/fb76c1e8-9799-098b-3b78-7bf5c9b16079/ios-4.png/1242x2688.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/b9/6d/36/b96d36aa-7a10-c209-8671-913064d9f0f1/ios-5.png/1242x2688.png)
- [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/2f/1c/33/2f1c3325-975a-7d8d-fad0-8ccd77bac6d5/ios-6.png/1242x2688.png)

## Key Finder Rating Breakdown in United States
- 5 stars: 2 (67%)
- 4 stars: 0 (0%)
- 3 stars: 1 (33%)
- 2 stars: 0 (0%)
- 1 stars: 0 (0%)





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## Key Finder Available In
- [United States](https://apptail.io/app/key-finder-analyze-any-scale-OStx/united-states)
- [France](https://apptail.io/app/key-finder-analyze-any-scale-OStx/france)
- [Australia](https://apptail.io/app/key-finder-analyze-any-scale-OStx/australia)
- [Azerbaijan](https://apptail.io/app/key-finder-analyze-any-scale-OStx/azerbaijan)
- [Belgium](https://apptail.io/app/key-finder-analyze-any-scale-OStx/belgium)
- [Bulgaria](https://apptail.io/app/key-finder-analyze-any-scale-OStx/bulgaria)
- [Brazil](https://apptail.io/app/key-finder-analyze-any-scale-OStx/brazil)
- [Belarus](https://apptail.io/app/key-finder-analyze-any-scale-OStx/belarus)
- [Canada](https://apptail.io/app/key-finder-analyze-any-scale-OStx/canada)
- [China](https://apptail.io/app/key-finder-analyze-any-scale-OStx/china)
- [Cyprus](https://apptail.io/app/key-finder-analyze-any-scale-OStx/cyprus)
- [Germany](https://apptail.io/app/key-finder-analyze-any-scale-OStx/germany)
- [Denmark](https://apptail.io/app/key-finder-analyze-any-scale-OStx/denmark)
- [Ecuador](https://apptail.io/app/key-finder-analyze-any-scale-OStx/ecuador)
- [United Kingdom](https://apptail.io/app/key-finder-analyze-any-scale-OStx/united-kingdom)
- [Grenada](https://apptail.io/app/key-finder-analyze-any-scale-OStx/grenada)
- [Greece](https://apptail.io/app/key-finder-analyze-any-scale-OStx/greece)
- [Honduras](https://apptail.io/app/key-finder-analyze-any-scale-OStx/honduras)
- [Croatia](https://apptail.io/app/key-finder-analyze-any-scale-OStx/croatia)
- [Hungary](https://apptail.io/app/key-finder-analyze-any-scale-OStx/hungary)
- [Ireland](https://apptail.io/app/key-finder-analyze-any-scale-OStx/ireland)
- [Israel](https://apptail.io/app/key-finder-analyze-any-scale-OStx/israel)
- [Iceland](https://apptail.io/app/key-finder-analyze-any-scale-OStx/iceland)
- [Lebanon](https://apptail.io/app/key-finder-analyze-any-scale-OStx/lebanon)
- [Sri Lanka](https://apptail.io/app/key-finder-analyze-any-scale-OStx/sri-lanka)
- [Luxembourg](https://apptail.io/app/key-finder-analyze-any-scale-OStx/luxembourg)
- [Latvia](https://apptail.io/app/key-finder-analyze-any-scale-OStx/latvia)
- [Madagascar](https://apptail.io/app/key-finder-analyze-any-scale-OStx/madagascar)
- [North Macedonia](https://apptail.io/app/key-finder-analyze-any-scale-OStx/north-macedonia)
- [Malta](https://apptail.io/app/key-finder-analyze-any-scale-OStx/malta)
- [Mexico](https://apptail.io/app/key-finder-analyze-any-scale-OStx/mexico)
- [Nigeria](https://apptail.io/app/key-finder-analyze-any-scale-OStx/nigeria)
- [Netherlands](https://apptail.io/app/key-finder-analyze-any-scale-OStx/netherlands)
- [New Zealand](https://apptail.io/app/key-finder-analyze-any-scale-OStx/new-zealand)
- [Peru](https://apptail.io/app/key-finder-analyze-any-scale-OStx/peru)
- [Poland](https://apptail.io/app/key-finder-analyze-any-scale-OStx/poland)
- [Qatar](https://apptail.io/app/key-finder-analyze-any-scale-OStx/qatar)
- [Romania](https://apptail.io/app/key-finder-analyze-any-scale-OStx/romania)
- [Russia](https://apptail.io/app/key-finder-analyze-any-scale-OStx/russia)
- [Saudi Arabia](https://apptail.io/app/key-finder-analyze-any-scale-OStx/saudi-arabia)
- [Sweden](https://apptail.io/app/key-finder-analyze-any-scale-OStx/sweden)
- [Slovakia](https://apptail.io/app/key-finder-analyze-any-scale-OStx/slovakia)
- [Senegal](https://apptail.io/app/key-finder-analyze-any-scale-OStx/senegal)
- [Türkiye](https://apptail.io/app/key-finder-analyze-any-scale-OStx/turkey)
- [South Africa](https://apptail.io/app/key-finder-analyze-any-scale-OStx/south-africa)
- [Argentina](https://apptail.io/app/key-finder-analyze-any-scale-OStx/argentina)
- [Armenia](https://apptail.io/app/key-finder-analyze-any-scale-OStx/armenia)
- [Uzbekistan](https://apptail.io/app/key-finder-analyze-any-scale-OStx/uzbekistan)
- [South Korea](https://apptail.io/app/key-finder-analyze-any-scale-OStx/south-korea)

---

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