Free
In-App Purchases
Lowest price: $0.99 3 months ago (-%)
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About
This app provides a detailed breakdown of your sleep score, explaining the exact metrics and calculations behind it. It emphasizes transparency and confidence in measurements, showing how dependable each night's data is. View trends over time and access your data on your Apple Watch and Home Screen.
✓Detailed sleep score explanation
✓Transparent calculation inputs
✓Confidence in data accuracy
✓Sleep trends over weeks
✓Apple Watch and Home Screen widgets
✓Privacy-focused, no account or server
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What's New in Dawnline
6.0.1
October 31, 2026
Tap “Awake” in the ring and Dawnline now explains what happens in the waking minutes of your night, just as it does for the other stages. The Lock Screen widget shows your night’s verdict in full again. When a new version is out, Dawnline lets you know after you have read your score. To do this, the app asks the App Store once a day for the current version number, without an account and without any identifier. Your sleep data still never leaves your device. In Settings you will also find a direct way to rate the app.
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Subscriptions & In-App Purchases
$3.99
Dawnline Plus
30 and 90 nights, duration, efficiency, CSV. One-time.
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FAQ
What is Dawnline's sleep score based on?
Dawnline's sleep score is composed of seven components with fixed weights: duration (34%), regularity (22%), efficiency (14%), continuity (12%), and 6 points each for deep sleep, REM, and detected sleep stages. The app provides a detailed breakdown of these calculations.
Does Dawnline have ads?
No, Dawnline is ad-free. The app is designed with privacy as a core architectural principle and does not contain advertisements.
How accurate is Dawnline's sleep data?
Dawnline emphasizes confidence in its measurements, acknowledging that not every night is measured equally well. It clearly indicates the dependability of each night's data and what was not measured, rather than presenting incomplete data as a zero.
Can I see my sleep trends with Dawnline?
Yes, Dawnline allows you to view trends across weeks, showing the regularity of your sleep, the scatter and drift of your sleep midpoint, and any accumulated sleep debt against your goals. It also helps differentiate between significant differences and normal variations.
Is Dawnline available on Apple Watch and Home Screen?
Yes, Dawnline offers features for Apple Watch, including a score and night metrics with complications for the watch face. It also provides widgets for your iPhone's Home and Lock Screen, displaying the same numbers as the main app.
What is Dawnline's update frequency?
The latest version of Dawnline is 6.0.1, and it was last updated on October 31, 2026. The app performs an anonymous daily check with the App Store for the latest version number.
Does Dawnline require an account or send data to servers?
No, Dawnline has no account and no server. Your sleep data is read only from Apple Health and never leaves your device. The app's architecture prioritizes privacy.
What is the age rating for Dawnline?
Dawnline has an age rating of 4+, making it suitable for a wide range of users. It is designed to be a straightforward tool for understanding sleep patterns.
