Everything you might want to know about 432 Player Plus

432 Hz is an alternative tuning standard where A4 is set to 432 cycles per second instead of the modern 440 Hz reference. Every other note in the scale is shifted proportionally, so the music stays musically intact — the whole scale simply sits 8 Hz lower.

Many listeners describe 432 Hz tuning as warmer, rounder and more relaxed than 440 Hz of the same song. Whether that's a physical effect or a matter of acoustic preference is up to you to decide — 432 Player Plus simply makes it easy to A/B for yourself.

No. The retune happens in real time during playback. Your original files stay exactly as they were. Switch back to 440 Hz any time with one tap.

MP3, FLAC, WAV, and most other common audio formats. The app uses advanced algorithms to shift the tuning while preserving audio quality.

Yes. The first 20 retunes are free — no signup, no credit card. After that you choose: $19.99 to unlock 432 Hz on this player permanently, or $99.99 once to unlock all 10 frequencies (432 Hz plus the 9 solfeggio tones).

Yes — every paid tier is one-time, no subscriptions. Unlocking 432 Hz is $19.99. Adding any of the other nine solfeggio frequencies (174, 285, 396, 417, 528, 639, 741, 852, 963 Hz) is $19.99 each, or $99.99 once for all of them. Purchases are per-platform: a Mac license doesn't activate iOS, etc.

Yes. Once a track is in your library, you can listen to it retuned to 432 Hz with no internet connection.

432 Player Plus only works with audio files you own — streaming-service files are encrypted so only the host app can decode them. If you want to retune *streamed* music from Spotify, Apple Music, YouTube Music, or anything else playing on your device, take a look at retunerpro.com. ReTuner Pro retunes everything coming out of your device system-wide, including streaming apps. It's a different tool for a different job — and it's the one we point people to when their library is mostly cloud-locked.

No. We don't collect, store, sell, or share your listening data. The only data we collect happens before you download the app, and that's used purely to optimize our marketing.

Yes. The frequency-modifying technology is patented in the USA (US Patent 11,836,330) — that patent ensures no corporation can lock the capability behind their own paywall.

Yes — we offer a 14-day money-back guarantee. If the app isn't for you, email us and we'll refund your purchase.