Guide · Compare
The best 432 Hz apps: which type fits you?
Short answer
The best 432 Hz app depends on what you listen to. Music players retune your own files. Browser extensions retune a browser tab. File converters make retuned copies of files you own. Whole-device apps retune everything that plays, including streaming apps. Quantic Heartz is a whole-device app: on a Mac it retunes every app, on Android the music and video apps that allow audio capture, by 31.77 cents from A=440 Hz to A=432 Hz, without changing the tempo.
Four Types
Four kinds of 432 Hz app. Very different reach.
Your own files
Play the music files on your device in 432 Hz, some with online radio too. They retune only what plays inside the player; streaming apps keep playing at 440 Hz. Some also offer a web player or extension for the browser.
One browser tab
Retune the audio of a tab, for example YouTube or a streaming web player. Often free. Desktop apps, phone apps and everything outside that browser stay at 440 Hz.
Copies of your files
Editors such as the free Audacity, or online converters, save a retuned copy of a file you own, one at a time. Streaming music cannot be converted, because there is no file to open.
Everything that plays
An app in the audio path retunes whatever plays: on a Mac every app and browser, on Android the music and video apps that allow audio capture. This is what Quantic Heartz does.
How to Choose
Pick by what you actually play.
Mostly your own music files? A 432 Hz player or a converter is enough. Mostly YouTube in one browser? An extension can do it.
Spotify or Apple Music desktop apps, several apps at once, or your phone? Then you need whole-device retuning, because players and extensions cannot reach those apps.
What to Check
Four things worth checking.
Tempo: a real 432 Hz retune moves the pitch by 31.77 cents and keeps the tempo. Slowing a song down also lowers it, but makes it longer.
Proof: a chromatic tuner set to A=440 should show the music about 32 cents flat. Quantic Heartz measures this live on screen.
Reach: which apps are covered, and which stay at 440 Hz. Live calls are the same everywhere: the system sends them straight to the hardware.
Price: free tools usually cover one tab or one file at a time. Whole-device apps are paid, with a trial to test first. No app should promise health effects; the research on 432 Hz is small and mixed.
Step by Step
4 steps. One click.
- 01
Install Quantic Heartz
Download the app for macOS and drag it to Applications. On first launch it sets up its audio driver automatically.
QuanticHeartz.dmg → /Applications → done - 02
Play anything
Start music, a video or a podcast in any app or browser on your Mac.
any app → play - 03
Switch on 432 Hz
Click the power button in Quantic Heartz. Everything your Mac plays is now 31.77 cents lower, at A=432 Hz.
shift: -31.77 cents · 440→432 Hz - 04
Compare
Click the power button again to hear the same moment at the standard 440 Hz. Switch back and forth to hear the difference.
on: 432 Hz · off: 440 Hz
Pricing
Choose your frequency.
Unlimited access to 432 Hz frequency.
Monthly
Cancel anytime
- Unlimited 432 Hz access
- Ultra-low latency processing
- Professional audio quality
- All updates included
Yearly
Billed annually
- Unlimited 432 Hz access
- Ultra-low latency processing
- Professional audio quality
- All updates included
FAQ
Questions &
answers.
What is the best 432 Hz app?
+It depends on what you play. For your own files, a 432 Hz player or converter works. For one browser tab, an extension. For streaming apps and everything on a Mac or Android phone, a whole-device app like Quantic Heartz.
Is there a free 432 Hz app?
+Yes. Free browser extensions retune a tab, and free editors like Audacity convert files you own. Quantic Heartz has a free trial, then a monthly or yearly plan.
Which 432 Hz app works with Spotify?
+On a Mac, Quantic Heartz retunes the Spotify desktop app and the web player. Browser extensions can retune the Spotify web player in their tab only.
How do I check that an app really plays 432 Hz?
+Play a song with clear, held notes and check it with a chromatic tuner set to A=440. At 432 Hz the notes read about 32 cents flat.
Does 432 Hz make songs slower?
+No. Quantic Heartz only lowers the pitch. The tempo and the length of the song stay the same.
What does it cost?
+Quantic Heartz has a 7-day free trial with full access. After that it is €9.99 a month or €69.99 a year.