Apple Health

Apple Health insights need baselines, context and confidence.

daygauge reads selected Apple Health sleep, movement and recovery summaries after permission, then compares them with your own recent average.

The question

Apple Health becomes useful when the app explains the day around it.

Apple Health holds a lot of useful summaries, but on its own it leaves the pattern work to you.

daygauge turns the Apple Health readings you allow into your Life Index, readiness and pattern notes. Your health readings stay on your iPhone.

Quick answer

daygauge reads the Apple Health summaries you allow, such as sleep, steps, exercise, resting heart rate and HRV, where your iPhone or wearable records them.

Questions answered

What this guide covers.

  • What Apple Health data can an app use?
  • How does Apple Health data feed a daily score?
  • Does daygauge write to Apple Health?
  • How are Apple Health permissions explained?
  • What happens if you decline a permission?
In daygauge

How the app handles this.

Signal
daygauge reads the Apple Health summaries you allow, such as sleep, steps, exercise, resting heart rate and HRV.The Life Index uses movement, sleep and recovery, each compared with your own average. It only writes to Apple Health if you log your weight and allow it.
Confidence
Missing readings lower confidence instead of creating false certainty.When a reading is not available, daygauge says so rather than filling the gap.
Weekly Review
Weekly Review shows what changed, what held and what to try next.Your first Weekly Review is free. Later reviews are part of Pro.
Illustrative example

What this can look like in the app.

Sleep: 6h 52m from Apple Health, 38 minutes below your usual.

Example
Confidence

A pattern is only called proven after it repeats on your own paired days. Missing readings lower confidence.

Next move

Try one small change, log it in Quick Log, then compare your next readings.

Example 1

Movement: steps 22% above your recent average.

Example 2

Sound: environmental sound exposure from Apple Health, shown next to your sleep.

Research

Further reading.

These studies describe groups of people. They help explain the topic, but they cannot tell you what will happen to you.

Research context only. daygauge does not diagnose, treat, prevent or predict disease risk. Personal medical concerns belong with a qualified clinician.

Limits

What daygauge does not do.

  • It does not diagnose, treat or prevent disease, or predict your risk of it.
  • It does not claim one habit caused a result. It shows the pattern, how confident it is and what else changed.
On the App Store

Want Apple Health insights compared with your own average?

daygauge is free to download. Pro is £8.99 a month or £49.99 a year.

Download on the App Store

Personal analytics, not medical advice