Dawnline now asks for your opinion earlier: after the third scored night, when the night was a good one and you have looked at least once at how the score comes about. At most three times a year, never at launch and never behind a pre-question — the dialog belongs to Apple, and Dawnline does not filter it. Settings has a new section, "Spread the word". One tap takes you straight to the review form on the App Store; a second opens the share sheet, in case you would like to recommend Dawnline to someone who would also like to know why in the morning. Everything else stays as it is: no subscription, no cloud, no account. Everything is computed on your device.

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.

The Today screen has become a morning glance. When you open the app, a single sentence tells you how the night compared with your own normal — "A night like your normal" or "Six points above your normal" — and everything that belongs to it sits below without scrolling: the night ring with the score, then duration, efficiency and sleep debt, each with its distance from the range your nights usually fall into. New are the two lines of history underneath. The last seven nights stand as bars against the band of your normal, tonight in ink. The last ninety nights lie beside them as a strip, one cell per night, the darker the better; a gap in the recording remains visible as hatching. During the first nights, the app tells you how many are still needed before it knows your normal. The Trends tab is now called History and opens with the score of the last seven, thirty or ninety nights. A tap on either history line takes you straight there. Your normal is the range between the 25th and 75th percentile of your last sixty nights, calculated on your device. Nothing leaves it.

Dawnline has turned light. The screen is now a calm, warm surface, and everything on it has a reason to be there. The stages of your night no longer carry colours but tones — the deeper the sleep, the darker the tone. Colour is reserved for a single event: the moment you woke up. The night stays readable even for eyes that tell colours apart poorly. Cards, shadows and gradients are gone. What belongs together is held by a fine line; what matters is larger, not bolder. The night ring now reads like the face of a good alarm clock — which, at heart, it always was. Nothing changes about what you rely on: every number shows its calculation, a gap in the recording stays a gap, and everything stays on your device.

Every metric now shows your own usual range – the middle half of your recent nights – and where tonight falls on it. That includes deep, core and REM sleep in the course of the night. Below the ring you can see how much of your sleep goal this night reached, and whether sleep debt has built up over the past two weeks. Awakenings carry their unit, reliability carries its name, and every metric sits in one calm, consistent row. The usual range appears once seven nights have been recorded.

This version answers the question a sleep app answers least often: where does the number actually come from? Every number now shows its arithmetic. Tap a value and you see the formula, the inputs it used, and the nights it rests on. Confidence per night is new: you learn not only how your night was, but how dependable that statement is and why. Missing measurements are no longer zeros. Where nothing was measured, it says so, and an analysis that still needs more nights tells you how many. Regularity, sleep midpoint and the weekly comparison now stay correct around the clock — across midnight and on the two daylight saving days each year. Widgets and the complication show exactly the same numbers as the app. About the score: 5.0 calculates with a new, fully disclosed weighting — duration 34, regularity 22, efficiency 14, continuity 12, and 6 points each for deep sleep, REM and sleep stages. Your points may therefore shift compared with 4.0, including for past nights, because the score is recalculated on every launch. Which component carries how much weight is set out in full in the app under "About the calculation". No longer included: the sleep lab with snore analysis, the Smart Alarm on the watch, and the trend view on the watch.

Dawnline 4.0 recalculates your sleep score. Two things changed. First, Dawnline now measures your night more precisely: bedtime and time in bed now come from your Apple Watch's sleep stages instead of an iPhone signal Apple itself no longer maintains. Second, the score now factors in how regular your sleep is – the best-documented predictor of sleep health, one the score never counted before. To make room, deep sleep and REM carry a bit less weight, since no watch measures them reliably. Because the score is freshly calculated from Apple Health every time you open the app, this also changes your past history. That's intentional, not a bug – a new explainer shows what changed and why. Also: your sleep balance now looks back 14 days instead of 7, and naps count in full. Everything else stays the same: no subscription, no cloud, every point explained.

Dawnline 2.0 brings three calm new perspectives on your sleep: • Readiness — an explainable recovery score for the day, drawn from your sleep, your sleep debt and (if your Watch measures them) resting heart rate & HRV. • Vitals — sleeping heart rate, respiratory rate, blood oxygen and more, quietly shown in the night view. • Rhythm — how regular your sleep times are. Everything stays on your device. No subscription, no cloud.

Minor improvements and refinements.