🎚️
Patented real-time pitch shifting
Best in class pitch processing built on a low-latency audio worklet.
Real-time audio retuning
Retune live music from any app to your frequency.
Retuner Pro sits between your music and your speakers, shifting any song to 432 Hz, any solfeggio frequency, or a custom A4 target — in real time. Works with Spotify, YouTube, Apple Music, Chrome — whatever you already use.
Patented accuracy Free to try 7-day free trial on subscriptions
Live retuning
440
Hz
→
432
Hz
How it works
Set Up Once. Enjoy Forever.
Retuner Pro enhances any audio going through your computer, live.
01
Install Retuner Pro
Download the Mac or Windows app. A guided setup connects your system audio in under two minutes. No audio engineering knowledge needed.
02
Choose your target frequency
Select 432 Hz, a solfeggio preset, or dial in your own A4 target. Pick your speakers or headphones as the output.
03
Press play — hear the difference
Your music arrives at your ears shifted to your chosen frequency, in real time. No restart required. Toggle off any time to instantly restore standard tuning.
Features
Meticulously designed for intentional listening.
🎵
10 tuning presets + custom
432 Hz and the full solfeggio set (174, 285, 396, 417, 528, 639, 741, 852, 963 Hz) plus any custom A4 target you choose.
🎧
Binaural depth (Elite)
Add controlled left/right frequency separation to create a more spacious, meditative listening experience.
🎛️
EQ and custom presets (Elite)
Five-band EQ with genre presets or build and save your own. Changes apply live without interrupting playback.
🔍
Tuning detection
Automatically detects the source tuning of your music so you can shift relative to where the track actually sits.
🖥️
Mac & Windows
Native desktop app for Apple Silicon, Intel Mac, and Windows. One license, two active devices.
Tuning presets
432 Hz, Sacred Solfeggio + Any Custom.
Switch between solfeggio presets or dial in your own target — no restart needed, changes apply immediately while music is playing.
174 Hz
285 Hz
396 Hz
417 Hz
432 Hz
528 Hz
639 Hz
741 Hz
852 Hz
963 Hz
Custom A4
Why Retuner Pro
Retune everything. Not just one app.
Our browser extensions retune audio inside a browser tab. Our music player apps retune local files. Retuner Pro is the only product that works at the system level — every app on your computer, retuned in real time.
| Browser extensions | Music player apps | Retuner Pro | |
|---|---|---|---|
| Spotify (desktop app) | ✗ | ✗ | ✓ |
| Apple Music (desktop app) | ✗ | ✗ | ✓ |
| YouTube / browser audio | ✓ | ✗ | ✓ |
| Tidal, Amazon Music, VLC, etc. | ✗ | ✗ | ✓ |
| Local music files | ✗ | ✓ | ✓ |
| Multiple apps at once | ✗ One tab | ✗ Built-in player only | ✓ All audio, system-wide |
| No app switching or importing | ✗ | ✗ Must import files | ✓ Use your existing apps |
| Binaural enhancement & EQ | ✓ | ✗ | ✓ (Elite) |
FAQ
Common questions.
Does this work with Spotify, YouTube, and Apple Music?
Yes. Retuner Pro routes your system audio — it doesn't need access to the music app itself. Any app that plays audio through your speakers or headphones works, including Spotify, YouTube in any browser, Apple Music, Tidal, VLC, Amazon Music, and anything else you use.
Does it add noticeable delay or latency?
No. Retuner Pro processes audio in real time with no perceptible latency. Music plays instantly — you won't notice any delay.
What happens when I turn it off?
Instantly restores standard playback. On Windows, Retuner Pro returns your system audio default device to exactly where it was before you enabled routing. On macOS, it hands output back to your previous device. No reboot needed.
Will this change the speed or tempo of my music?
No. Retuner Pro shifts pitch independently of tempo. Songs play at the same speed — only the tuning changes. The shift from 440 Hz to 432 Hz is roughly 32 cents, which is a small enough change that timing is completely unaffected.
Do I need any audio engineering knowledge?
No. The setup takes a couple of minutes with guided steps. On Windows, Retuner Pro handles the virtual audio routing automatically. On macOS, you install BlackHole once and Retuner Pro does the rest. After that, it's a simple on/off toggle.
What is the difference between Core and Elite?
Core includes real-time retuning, all frequency presets, and standard EQ. Elite adds binaural frequency separation, advanced EQ with custom preset saving, tuning detection (so Retuner can shift relative to where your track actually sits), and access to future premium features. Both plans include two active devices.
Can I try it before buying?
Yes. The app includes a free preview so you can hear the difference before committing. When you're ready, select a monthly or annual plan to start a 7-day free trial — no charge until the trial ends. Lifetime purchases include a 7-day money-back guarantee instead of a trial.
Does it work on headphones as well as speakers?
Yes. Retuner Pro outputs to any audio device you select — headphones, speakers, USB audio interfaces, Bluetooth headphones or speakers. You choose the output device inside the app.
Experience your music like never before.
Free preview, then 7-day trial on monthly/annual plans.
Works on Mac and Windows with the apps you already love.
7-day free trial on subscriptions · 7-day money-back guarantee on lifetime · License key emailed after purchase