Your music, retuned.

Attune plays your local music files and retunes them to 432 Hz in real time - the natural frequency that sounds softer, warmer, and more harmonious than the 440 Hz standard.

No streaming. No account. No tracking. Just your music, the way it was meant to sound.

FEATURES

🎵 432 Hz Real-Time Retuning
Every song is pitch-shifted to 432 Hz on the fly. Toggle it on or off - hear the difference instantly.

🔧 Custom C++ Audio Engine
Attune doesn't rely on generic Android audio processing. It runs its own native C++ engine with r8brain for sample-rate-accurate pitch shifting and Oboe for direct hardware output with minimal latency. The result: clean, artifact-free 432 Hz conversion that preserves the full quality of your files - from 16-bit MP3s to 24-bit FLACs.

🔊 Gapless Playback
Tracks flow seamlessly into each other with click-free crossfades - no gaps, no interruptions. Handled entirely in the native engine for sample-accurate timing.

🎨 Clean, Dark Interface
A sleek player designed for music lovers. Full-screen artwork, blur backgrounds, swipe gestures, and smooth animations.

❤️ Favorites & Playlists
Organize your library your way. Heart your favorite tracks, create playlists, drag to reorder.

🔍 Smart Library Scanner
Automatically finds all audio files on your device. Supports MP3, FLAC, WAV, AAC, M4A, OGG, OPUS, and WMA.

🎛️ Native Equalizer
Access your device's built-in audio effects and equalizer for full sound control.

🔔 Background Playback
Keep listening while you use other apps. Full playback control from your notification bar and lock screen.

🌍 15 Languages
Available in English, German, Dutch, Spanish, French, Portuguese, Italian, Turkish, Polish, Russian, Japanese, Korean, Chinese, Arabic, and Hindi.

📴 Fully Offline
No internet required. No cloud. No sign-up. Your music stays on your device.

WHY 432 Hz?

The 440 Hz tuning standard was adopted in the 20th century, but musicians and listeners around the world prefer 432 Hz for its natural, calming quality. Attune lets you experience the difference with your own music library - no special files needed.

ATTUNE PRO

Upgrade once, yours forever. No subscription.
- Ad-free experience
- Custom accent colors

Download Attune and hear your music in a new light.