Make room for sleep.
Halcyo is calming sound for people with tinnitus. It finds the tone you hear, plays soft sound with a gentle gap around it, and adds short self-help lessons for sleep and stress.
Coming to iPhone and Android.
7 days free, then $59.99 a year in the US.
Find your tone.
It takes a few minutes. With headphones on, pick the tone closest to the one you hear, check the octave and match the loudness.
Tone matching is for ringing that sounds like a tone. If yours is more of a hiss or a hum, skip it and pick a calming sound you like.


Hear the gap.
Your sound is soft pink noise with a gentle gap half an octave wide, right at your tone. Press play, then move the gap along the line.
The gap sits at a high ring
Plays quietly, only when you press. Headphones help.


Fall asleep with it on.
Mix your sound with rain or the ocean and set a timer. The mix fades out on its own. Sleep mode turns the screen a dim amber, so checking the time doesn't light up the room.
Your bed is for sleep.
A wind-down hour.
When you wake at 3 a.m.
Week two is about nights.
Short self-help lessons for the hours you lie awake: a wind-down hour, what to do when you wake at 3 a.m., a set time for worries. About three minutes each, with one thing to try.
28 mornings.
One short self-help lesson each morning, in your language, ending with one thing to try. A one-minute check-in shows what makes it louder for you.
- Why the brain turns up the volume
- Sound as a cushion, not a wall
- Releasing tension
- Spikes happen

- Week 1Understanding your tinnitus
- Week 2Better nights
- Week 3Focus, stress and the body
- Week 4Setbacks and the long run
Languages
English Español Português Français Deutsch Italiano 日本語 한국어 Nederlands Polski
Every screen and all 28 lessons, in ten languages.
Seven days free.
Then $59.99 a year or $9.99 a month in the US; your store shows the price for your country. We remind you two days before your trial ends, and you can cancel anytime in your store settings.
Coming to iPhone and Android.
Why Halcyo. Halcyon is an old name for the kingfisher. In the Greek story, the winds drop for seven days every winter so it can nest on a calm sea.


