Sound for a calmer mind
Tune in to focus, calm & sleep.
Hertzy turns your phone into a precision tone studio and a quiet soundscape — beautifully simple, completely yours.
Hertzy turns your phone into a precision tone studio and a quiet soundscape — beautifully simple, completely yours.
Dial in exactly the sound you need, or tap a preset and go.
A smooth rotary dial puts every hertz at your fingertips — from a deep 90 Hz hum to a bright 852 Hz tone.
Pure tones, binaural beats and isochronic pulses — switch instantly to find what suits the moment.
Rain, ocean, wind and white, pink & brown noise. Layer them under a tone for the perfect backdrop.
Focus, Calm, Sleep, Meditation and popular tones like 432 & 528 Hz — ready the second you open the app.
Found a combination you love? Save it. Your tones stay on your device and sync through your private iCloud.
Set it and drift off. Hertzy fades out on its own so nothing plays through the night.
Hertzy generates clean, stable tones in real time — no loops, no fuzz. Glide the dial to land on any frequency, then shape it with a tone mode.
Layer in nature and noise — on their own or beneath a tone. Tap play, set the sleep timer, and let Hertzy fade out gently once you've drifted off.
No accounts. No name, email or contacts. Saved tones never leave your device. The only data we see is anonymous, aggregated diagnostics that keep the app stable.
Download Hertzy and turn down the noise — wherever you are.