The frequency detector that fits in your pocket.
Point your phone at any speaker. HZ Detect samples the notes, reveals the real tuning (432, 440, 444, or any Solfeggio target), identifies the song, and offers a one-tap link to hear it retuned to 432 Hz or 528 Hz.
100% free. Audio is analyzed on your device and never uploaded.
Only the mobile app pairs live tuning detection with song identification, so you can jump straight to the same track retuned to your target frequency.
A 30-second listen captures the notes and matches them against tuning tables for 440, 432, 444, and every Solfeggio frequency.
Built-in song recognition names the track and artist while the tuning analysis runs — no extra taps.
One tap opens the identified song retuned to 432 Hz or 528 Hz, based on what was detected.
Use the browser extension.
Detect tuning while music plays in a tab or through desktop audio from Spotify, Apple Music, Pandora, and more.
Get the extensionTry the web detector first.
The free web detector runs in your browser using your microphone — a quick way to see how detection works.
Open the web detector