# Yoine Press Kit

Materials for press, reviews, and coverage. You may use the text, images, and video in this kit to cover, review, or introduce Yoine. See "9. Usage notes" for details.
The icon, logo, screenshots, and key visual are in the `icon/`, `logo/`, `screenshots/`, and `key-visual/` folders. The trailer is on YouTube: https://youtu.be/W0InsM3FWcQ. Email us if you need the video files.

Contact: contact@yoine.app

## 1. In one line

**Sound for your quiet hours.**
Press play, put the phone down. A soundscape app for iPhone.

## 2. Descriptions

**Short**

> Press play, put the phone down. Yoine is an iPhone app that plays quiet sound for the minutes before sleep. Free, with no ads.

**Medium**

> Yoine is an iPhone app that plays sound for the time before sleep. Press play and put the phone down. In the Sleep scene, the sound grows gradually quieter over the playback time you choose. No account, no ads, no data collection. Free to use.

**Long**

> Yoine is a soundscape app for iPhone with three scenes: Relax, Focus, and Sleep. It layers noise with a low drone, soft harmony, and sparse chimes. In the Sleep scene, the sound grows gradually quieter over the playback time you choose, then fades out and stops. With Unlimited, the music slowly recedes over about 40 minutes and a soft bed of sound continues until you stop it. Start and stop share one button in one place, and playback works from the lock screen. There is no account, no ads, and no data collection. The free version works for a full night; a one-time purchase, Yoine Full, adds longer playback times and automatic adjustment toward your bedtime.

## 3. Fact sheet

| | |
|---|---|
| Name | Yoine (pronounced “yo-in”) |
| Tagline | Sound for your quiet hours |
| Release date | October 6, 2026 |
| Platform | iPhone (iOS 17 or later) |
| Languages | English, Japanese |
| Available in | Japan, United States |
| Category | Health & Fitness |
| Price | Free. Yoine Full is a one-time in-app purchase (¥500 in Japan; local price shown in the App Store) |
| Subscription | None |
| Account | Not required |
| Ads | None |
| Data collection | The app collects no personal or usage data (App Store privacy label: Data Not Collected) |
| App Store | https://apps.apple.com/app/id6805321772 |
| Website | https://yoine.app/en |
| Contact | contact@yoine.app |

## 4. Features

**Press play, then leave it**
In the Sleep scene, the sound grows gradually quieter over the playback time you choose, then fades out and stops. With Unlimited, the music slowly recedes over about 40 minutes and a soft bed of sound continues until you stop it. Start and stop share one button in one place, and playback works from the lock screen.

**Three scenes**
- Relax: wave-like sound with soft harmony
- Focus: soft pink noise
- Sleep: a gentle drone with low, soft noise

**A dark interface for dark bedrooms**
Deep blue, low light, and quiet type.

**Volume limit and reference volume**
Set a volume limit for Yoine's sound. Save two reference volumes, one for the built-in speaker and one for all other outputs such as headphones; during playback, a note appears on screen when the device volume differs noticeably from the reference.

**No account, no ads, no data collection**
Settings and playback history stay on the device and are never sent to the developer automatically. The app's only network requests are App Store product information, purchases, restoration, and purchase-status checks. Diagnostics are shared, and reference links open, only when you choose.

**Original sound**
Noise is synthesized on the device in real time, and the drone and harmony material was made by the developer. No third-party music or recordings are used.

**No promises about sleep**
Yoine is not a medical device. The research that informed the sound design is listed under References in the app. Those studies were conducted independently and do not demonstrate Yoine's effects.

## 5. Free and Yoine Full

| Free | Yoine Full (one-time purchase) |
|---|---|
| All three scenes | 30-, 45-, 60-, and 90-minute playback times |
| Unlimited or 15-minute playback time | Automatic adjustment toward your bedtime (gradually calmer sound starting two hours before) |
| Volume limit, reference volume, fade-out at the end of timed playback | Sound mixing (layer levels and tone) |
| Playback history (on device only), a notification 30 minutes before bedtime | |

## 6. Assets

| File | Contents |
|---|---|
| `icon/yoine-icon-1024.png` | App icon (1024×1024, square; iOS applies the rounded corners) |
| `logo/yoine-logo-light.svg` / `.png` | Logo for dark backgrounds (#E6EEF5) |
| `logo/yoine-logo-dark.svg` / `.png` | Logo for light backgrounds (#04060D) |
| `screenshots/en/01-home.png` | Home (Sleep scene) |
| `screenshots/en/02-playing.png` | Playing, with the ring and time remaining |
| `screenshots/en/03-settings.png` | Settings: bedtime, volume limit, reference volume |
| `screenshots/en/04-history.png` | Playback history (stored on device; sample entries) |
| `screenshots/en/05-onboarding.png` | First run: setting the reference volume |
| `screenshots/ja/` | The same screens in Japanese |
| `key-visual/yoine-key-visual.png` | Key visual (1920×1080, the trailer's closing logo scene) |
| Trailer on YouTube (https://youtu.be/W0InsM3FWcQ) | 30-second trailer (1920×1080, with sound). Video files, including a silent version, are available on request |

Screenshots are real app screens captured in the iPhone 17 Pro Max simulator (1320×2868; the history screen shows sample entries). The trailer is drawn in code. Its audio uses the app's sound engine and original material, with timing and levels adjusted for the trailer.

## 7. Press release

**Press play, put the phone down: Yoine brings quiet sound for the minutes before sleep to iPhone**
**Sound that quiets over the time you choose. No account, no ads, no data collection. Free to use.**

October 6, 2026 — Yoine, a soundscape app for iPhone, is now available on the App Store. Yoine plays sound for three scenes, Relax, Focus, and Sleep. In the Sleep scene, the sound grows gradually quieter over the playback time you choose. Yoine is free to use, with no ads, no account, and no data collection.

**Made so you don't have to touch the screen**
Yoine centers on a single button that starts and stops playback. In the Sleep scene, the sound quiets over the time you set and fades out at the end. With Unlimited, the music slowly recedes over about 40 minutes and only a soft bed of sound remains. Playback works from the lock screen, and the dark interface is easy on the eyes in a dark bedroom.

**Features**
- Three scenes: Relax (wave-like sound with soft harmony), Focus (pink noise), and Sleep (a drone with low, soft noise)
- A volume limit for the app, and two reference volumes: one for the built-in speaker, one for all other outputs
- No account, no ads, no data collection; settings and history stay on the device and are never sent automatically
- Original sound, with noise synthesized on the device in real time
- Not a medical device and no promises about sleep; the research behind the sound design is listed in the app together with its limits

**Pricing and availability**
Yoine is available now on the App Store in Japan and the United States for iPhone with iOS 17 or later, in English and Japanese. The free version includes all three sounds, Unlimited or 15-minute playback, a volume limit, and playback history. Yoine Full, a one-time in-app purchase, adds 30- to 90-minute playback times, automatic adjustment toward your bedtime, and sound mixing. There is no subscription.

**From the developer**
"I've never been someone who falls asleep easily, and I built Yoine hoping it could help, even a little, at bedtime. How it feels to use is my own impression, of course, but I think it turned out to be something of real quality."

**Media contact**
contact@yoine.app
App Store: https://apps.apple.com/app/id6805321772
Website: https://yoine.app/en
Press kit: https://yoine.app/press/yoine-presskit.zip
Trailer: https://youtu.be/W0InsM3FWcQ

Yoine is not a medical device and is not intended to diagnose, treat, or prevent any condition.

## 8. FAQ

**Does Yoine help you sleep?**
Yoine is not a medical device, and it is not intended or guaranteed to improve sleep or treat any condition. The research that informed the sound design is listed under References in the app, and those studies do not demonstrate Yoine's effects.

**How is it different from iPhone's built-in Background Sounds?**
Yoine layers noise with a low drone, soft harmony, and sparse chimes. In the Sleep scene, the sound grows quieter over your playback time, and even with Unlimited the music recedes over about 40 minutes. You can also set a volume limit and reference volumes.

**What data does Yoine collect?**
None. There is no account, and settings and playback history stay on the device and are never sent automatically. The app's only network requests are App Store product information, purchases, restoration, and purchase-status checks; diagnostics are shared only when you choose. There are no ads.

**Is there a subscription?**
No. Yoine is free, and Yoine Full is a one-time purchase.

**Can I try Yoine Full for a review?**
We can send a code that unlocks Yoine Full for free. There is no obligation to publish and no condition on your review. Email contact@yoine.app.

**Is there an Android version?**
Yoine is available for iPhone only at this time.

**Can businesses use Yoine?**
Yoine is made for personal use. An app for businesses such as saunas, spas, and salons is planned. Get in touch at contact@yoine.app.

## 9. Usage notes

- You may use these materials to cover, review, or introduce Yoine. Please don't use them to represent other products or services. If a credit is needed, use "Image: Yoine".
- Please write the name as "Yoine" (capital Y only).
- Use the logo and icon without changing their proportions, colors, or shapes. `yoine-logo-light` suits dark backgrounds and `yoine-logo-dark` suits light ones.
- Feel free to resize or crop screenshots, but please don't alter what they show.
- Yoine is not a medical device. We'd appreciate it if coverage avoided claims that it improves sleep or treats insomnia.
