Identify the musical key of songs through microphone analysis, local audio files, or manual chord input. Results can be saved for later reference, and the app supports songs that change key mid-way.






250+ iOS apps curated and reviewed
If you already know Song Key Finder, this is the deeper bench. 250+ song key finder apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of September 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 | Free | 2.9★ (108) | Yes | Yes | Jul 2026 | ||
| 2 | Free | 3.9★ (87) | No | No | Sep 2026 | ||
| 3 | Free | — | Yes | Yes | Aug 2026 | ||
| 4 | Free | 4.6★ (2K) | Yes | Yes | Sep 2026 | ||
| 5 | Free | 4.9★ (8.8M) | No | No | Sep 2026 | ||
| 6 | Free | 4.6★ (5.9K) | No | Yes | Sep 2026 | ||
| 7 | $4.99 | 2.2★ (5) | No | Yes | Sep 2026 | ||
| 8 | Free | — | Yes | Yes | Aug 2026 |






Identify the musical key of songs through microphone analysis, local audio files, or manual chord input. Results can be saved for later reference, and the app supports songs that change key mid-way.






Instantly identify the musical key and scale of any audio source, from studio tracks to live instruments and vocals. Seamlessly sync detected keys with your computer's Digital Audio Workstation (DAW) for enhanced music production.





