Frequency Detector Tool
Find the musical key of any Hz
About
Instantly analyze musical keys from any frequency in Hertz. It displays the corresponding musical note, cents deviation, and whether it's in key with your selected musical scale. Features vocal context notes and a full frequency chart for EQ guidance.
What's New in Frequency Detector Tool
1.0
July 9, 2026
FAQ
What musical keys can Frequency Detector Tool analyze?
Frequency Detector Tool allows you to select any of the 12 musical tones to analyze frequencies against. The analysis instantly updates to show the in-key snap, nearest cut, and vocal-range context for your chosen key.
Does Frequency Detector Tool have ads?
No, Frequency Detector Tool is completely free with no ads or subscriptions. The developer states it was made with love and offers an optional donation link for support.
What devices does Frequency Detector Tool support?
Frequency Detector Tool is available on iPhone, iPad, and Apple Vision Pro. It is compatible with devices running iOS and iPadOS.
How often is Frequency Detector Tool updated?
Frequency Detector Tool was last updated on July 9, 2026, with version 1.0. Given this is the initial release date, future update frequency is not yet established.
What is the age rating for Frequency Detector Tool?
Frequency Detector Tool has an age rating of 4+. This indicates it is suitable for children and general audiences.
Can Frequency Detector Tool identify Solfeggio frequencies?
Yes, Frequency Detector Tool includes clickable Solfeggio frequencies such as 432, 528, 639, 741, 852, and 963 Hz. It also provides a note on what each frequency is associated with.
What kind of music theory facts are included?
Frequency Detector Tool features "Did You Know?" music-theory facts to enhance user understanding. The interface is also inspired by sacred geometry, adding a unique aesthetic.
How does Frequency Detector Tool help with EQ decisions?
The app provides vocal context notes and a full frequency chart across octaves 0-7. This allows users to see every note for boosting and cutting within their chosen key, guiding EQ adjustments effectively.