Sonore

Sonore is a minimalist app that plays a pure 432 Hz tone.
Tap a single button: the sound starts, along with a timer and a visual animation that follows the playback. Tap again to stop everything at once.
Built for simplicity: a single screen, no ads, no sign-up, and no data collection. The app works fully offline.
Perfect as background sound for focus, reading, relaxing, or simply to accompany a quiet moment.
Sonore is a tone generator and makes no therapeutic claims.