This app allows you to convert music files to different reference pitches, including the popular 432 Hz and various Solfeggio frequencies. It offers both batch conversion for entire libraries and live, real-time retuning with the ability to compare original and tuned versions.
2.1.0
August 21, 2026
# 20-08-2026 - Added: New translations - German, Spanish, French, Italian, Chinese, Polish, Russian, Portuguese
Enable the full version on a monthly basis.
432Hz Frequency Converter is a music application that retunes your audio files from one reference pitch to another, most commonly from 440 Hz to 432 Hz. It also supports other frequencies like 528 Hz and historical pitches.
It offers two methods: a batch converter for multiple files and a live player for real-time retuning. You can A/B test the original and tuned versions to ensure the sound is right.
The app reads MP3, M4A, AAC, Ogg, FLAC, and WAV files. It can also process the audio from video files.
No, the conversion process is non-destructive. Your original files are opened in read-only mode and are never changed. New files are written safely without overwriting existing ones.
Yes, you can convert to various standard and historical pitches, including Solfeggio presets like 174, 285, 396, 417, 528, 639, 741, 852, and 963 Hz. You can also enter any custom source and target frequency.
The app is free to download and use, with in-app purchases available. A monthly subscription is offered at $2.99 for enhanced features or content.
It is available on Mac, iPhone, and iPad devices. The age rating for the app is 4+.
The latest version, 2.1.0, was released on August 21, 2026, indicating regular updates. The app was initially released on July 24, 2026.
