Launch promotion · iOS Safari extension
Play any song in 432 Hz on your iPhone.
A Safari extension that retunes YouTube, YouTube Music, Apple Music, and Spotify — to 432 Hz, every Solfeggio frequency, or any A4 you set. iPhone, iPad, Mac.
You already love your music. Now hear it in the tuning you choose.
For seventy years the entire music industry has been locked to one number: A = 440 Hz. Every commercial recording. Every streaming platform. Every song you've ever played. The standard was set by a committee in 1955. Nobody asked you.
Music ReTuner gives the choice back. Pick the tuning that feels right on the songs you already love. Switch frequencies anytime — between tracks, mid-song, whenever. From Safari, on your iPhone.
What you get
Works in Safari
Retunes the music you already play — YouTube, YouTube Music, Apple Music, Spotify. No separate player, no downloads.
Every Solfeggio + 432 Hz
Ten one-tap presets, plus a Custom A4 field. Switch between them in real time.
6 family seats
One App Store purchase. iPhone, iPad, Mac Safari. Up to 6 people via Apple Family Sharing.
Why people install Music ReTuner
- Real-time retuning — change the frequency mid-song, hear the difference instantly
- Works with what you already pay for — your Apple Music, Spotify, and YouTube Music subscriptions, untouched
- Every Solfeggio + 432 Hz — ten one-tap presets
- Custom A4 input — any frequency, down to the decimal
- One-time purchase — no subscription, no recurring charges, ever
- 6 family seats included — via Apple Family Sharing, no extra cost
- Patented engine — real-time pitch shift on the actual stream — not a YouTube tone overlay
- Lifetime updates — within the major version
What current users say
The Safari extension launching on iOS uses the same patented engine already running on Chrome. Verified on the Chrome Web Store →
Super easy to install and to use! All the Solfeggio frequences to choose from. Just clicking though the different frequencies is quick and easy. I can listen to the music how I want to. I highly recommend it. Great extension! Love it!
I'm really glad that this Chrome extension exists. I use it almost daily for YouTube. When you set different frequencies, you can immediately hear a change in pitch with music. It takes a bit of getting used to at first, but after just a few seconds, you don't even notice it anymore — you just feel the effect of the frequency. Best regards from Germany!
Every frequency, one tap away.
The standard Solfeggio set, plus 432 Hz, plus a custom A4 field. Switch between them in real time on the songs you already love. Pick what feels right — nobody else decides for you.
One purchase. Six people. Forever.
Apple Family Sharing — up to six family members can install Music ReTuner from your single $99.99 purchase. No additional licenses. No per-device fees. No monthly cost per person. Buy once, share with the whole family.
Why $99.99?
It's our launch price. The same patented retuning engine sells at $299 on the desktop browser extension. iOS is the cheapest entry into this catalog of frequencies — and it covers six people on iPhone, iPad, and Mac through Apple Family Sharing. The launch price will go up.
Risk-free: Apple handles refunds within 14 days through your Apple ID. We don't contest them.
Quick answers
Does this really work with Apple Music and Spotify?
Yes — through their web players in Safari. Both platforms have full-featured web players, and Music ReTuner retunes whatever's playing. It doesn't work inside the native apps (Apple doesn't allow that), but most users adapt to Safari playback quickly.
Is this a subscription?
No. $99.99 one time. No recurring charges. Lifetime updates within the major version.
What if it doesn't work for me?
Apple handles all App Store refunds within 14 days of purchase. It takes a couple of minutes through your Apple ID account. We don't contest refunds.
Can I really share with 6 family members?
Yes — through standard Apple Family Sharing. Once you've purchased Music ReTuner, anyone in your Apple Family group (up to 6 people total) can install it on their own iPhone, iPad, or Mac at no additional cost.
Your music. Your tuning. Right from Safari.
P.S. — The launch price won't stay at $99.99. Same patented engine that sells at $299 on the desktop browser extension — $99.99 once on iOS. Six seats via Apple Family Sharing. No subscription, ever.