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Lowest price: $0.99 3 months ago (-%)
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About
This app provides detailed explanations for your sleep score, showing the exact calculations and data used. It emphasizes transparency and confidence in measurements, highlighting data reliability and trends over time. Your sleep data remains private on your device.
✓Detailed score explanations
✓Data transparency and confidence metrics
✓Sleep stage breakdown
✓Trend analysis over weeks
✓Apple Watch and Home Screen widgets
✓On-device data processing
✓Privacy-first architecture
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What's New in Dawnline
5.6
October 6, 2026
The morning glance has been refined. The night ring now carries a quiet crown of eleven marks, like the face of a good alarm clock, and the night's reliability sits as a calm line beneath it instead of inside a box. The seven bars of your recent nights are slimmer, and the band of your normal behind them is now clearly visible. In History you can now look at duration and efficiency as well as the score over seven, thirty or ninety nights; for duration, your sleep goal lies in the picture as a fine line. The former weekly block has been folded into it. During your first nights, Dawnline now counts properly: on the seventh night, the app tells you that from tomorrow it knows your normal.
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FAQ
What is Dawnline's sleep score based on?
Dawnline's sleep score is based on seven components with fixed weights: duration (34%), regularity (22%), efficiency (14%), continuity (12%), and 6% each for deep sleep, REM, and detected sleep stages. The app provides a detailed breakdown of these calculations.
How does Dawnline handle data accuracy?
Dawnline emphasizes confidence over false precision. It indicates the dependability of each night's measurement, distinguishing between continuous recordings and fragmented data. Unmeasured data appears as gaps, not zeros, and analyses requiring more nights clearly state the need.
Can I see my sleep trends with Dawnline?
Yes, Dawnline allows you to view trends across weeks, showing sleep regularity, sleep midpoint scatter and drift, and accumulated sleep debt against your goals. It also helps determine if observed differences are significant or within normal variation.
Does Dawnline have ads?
No, Dawnline is ad-free. Its privacy-first architecture means it has no account, server, or networking code, and no advertisements are included.
What devices does Dawnline support?
Dawnline is supported on Apple Watch and iPhone. It also offers complications for watch faces and widgets for Home and Lock Screens, displaying the same data as the main app.
How often is Dawnline updated?
The latest version of Dawnline is 5.6, and it was last updated on October 6, 2026. This indicates a relatively frequent update schedule for the application.
Is Dawnline a medical device?
No, Dawnline is not a medical device and does not replace professional medical advice. It is designed for personal sleep tracking and analysis.
How does Dawnline ensure user privacy?
Privacy is a core architectural principle for Dawnline. It uses Apple Health as its only data source, reading data only. All sleep data remains on the user's device as there is no networking code or server to transmit it.
