01 RELAX
Take a breath.
Wave-like ebb and flow with soft harmony.
A background for doing nothing.
SOUND FOR YOUR QUIET HOURS
A little sound.
A quieter night.
As the day ends, let the sound settle too.
Gentle sound you notice only when you listen,
quietly accompanying your evening.
RELAX / FOCUS / SLEEPSCROLL TO UNWIND
01 / SOUNDS
Sound for
this moment.
For taking a break, getting things done,
or bringing the day to a close. Choose from three scenes.
02 FOCUS
Stay with the task.
Soft pink noise.
Steady sound beside reading or work.
03 SLEEP
Ease into the evening.
Soft layers of drone and low, gentle noise.
Sound for the time before sleep.
02 / WIND DOWN
As bedtime nears,
the sound settles.
With Yoine Full, the app gradually makes its sound
darker and quieter around your bedtime.
In the Sleep scene, the music slowly recedes.
Spend the evening without repeatedly reaching for the screen.
Yoine Full · Two hours before bedtime
Gradually calmer sound.
Yoine Full slowly adjusts tone and volume
around the bedtime you set.
Play the Sleep scene
The music slowly recedes.
The sound quiets gradually
to match your playback time.
Playback & stopping
Keep a little sound. Or let it stop.
Timed playback fades out and stops.
With Unlimited, it plays until you stop it.
Longer playback times come with Yoine Full.
03 / A CLOSER LOOK
Quiet in every detail.
Choose a scene. Set your rhythm. Look back at your listening.
Scroll to see more.
Home
Three scenes for your moment. Sound mixing comes with Yoine Full.
Settings
Set your volume and daily rhythm. Automatic bedtime adjustment requires Yoine Full.
History
Your listening history stays with you.
04 / SIMPLY YOURS
Listening,
made simple.
No sign-up. Just start.
No account to create. Set a reference volume and bedtime, then use Yoine at your own pace.
Keep listening with the screen locked.
Background playback and lock-screen controls let you listen without keeping the app open.
Your history stays with you.
Settings and playback history stay on your device. They are not sent to the developer automatically.
05 / MAKE ROOM FOR QUIET
A little space for tonight.
FREE TO START
Start with a little sound.
- All three scenes: Relax, Focus, and Sleep
- Unlimited or 15-minute playback
- Volume limit and playback history
Yoine Full
Make the night your own.
One-time purchase. No subscription.
US$2.99
Price on the U.S. App Store as of October 2026. Prices vary by region.
- 30-, 45-, 60-, and 90-minute playback
- Automatic bedtime adjustment
- Sound mixing: levels and tone
iPhone · iOS 17 or later
Watch the film on YouTube06 / QUESTIONS
A few things to know.
What informs the sound design?
Our references list the research and technical resources consulted in sound design. These studies were conducted independently of Yoine and do not demonstrate its effects.
Do I need an account?
No. You can use Yoine without creating an account.
Where are my settings and history stored?
They stay on your device and are not sent to the developer automatically. Optional surveys and diagnostic sharing let you share information you choose to send. The app uses Apple StoreKit to retrieve product information, make or restore purchases, and check purchase status. See our privacy policy for details.
Is it a subscription?
No. The basic features are free, and Yoine Full is a US$2.99 one-time purchase on the U.S. App Store as of October 2026. Prices vary by region.
Which devices are supported?
Yoine is available for iPhone running iOS 17 or later.
Is Yoine a medical device?
No. Yoine is not a medical device and is not intended to diagnose or treat any condition. It does not guarantee better sleep.