SemiSleep
Sleep Countdown in a Meter
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
SemiSleep is a quiet bedtime meter for people who want to make the most of every day.
There are plenty of alarm apps and sleep trackers. SemiSleep looks at the other side of the day: the time you have left before bed.
Set your bedtime, and SemiSleep shows how much waking time remains through calm, visual meters on your iPhone, iPad, Home Screen widgets, Lock Screen widgets, and Apple Watch.
You may be surprised how short a day feels when the time you can stay awake is made visible.
Main Features:
- Home Screen and Lock Screen widgets
- Bedtime and wake-up time settings
- Visual meters that make remaining time easy to feel at a glance
- Apple Watch support
- Weekday-based schedules
- One-day bedtime and wake-up adjustments
- Multiple meter styles and themes
- Unlock additional designs with SemiSleep Plus
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Made minor fixes.
The developer, Takuya Harayama, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Takuya Harayama
- Size
- 8.1 MB
- Category
- Lifestyle
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Watch
Requires watchOS 10.0 or later.
- iPhone
- Languages
English and 6 more
- English, French, German, Italian, Japanese, Korean, Spanish
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- SemiSleep Plus $3.99
- Copyright
- © 2026 Harayama