Home / Guides / life score app

Product category

A life score app needs a number people can inspect.

daygauge calls this the Life Index: a daily number from 1 to 1000 built from your Apple Health movement, sleep and recovery, compared with your own average.

Download on the App Store See score anatomy Read evidence model
The question

Start with what your own data can show.

Many people want one calm number for how their day is going.

A useful one answers four questions: what moved it, what data was used, how confident is the read, and what could you try next?

Quick answer

The Life Index compares your movement, sleep and recovery with your own recent average, plus how consistent and balanced the day is. Places, habits, weather and notes do not change it.

Questions answered

What this guide covers.

  • What is a life score app?
  • How should a life score be calculated?
  • Can a lifestyle score be trusted?
  • What data should affect a life score?
  • How does daygauge avoid a black-box score?
In daygauge

How the app handles this.

Signal
Movement is 30%, sleep 25%, recovery (HRV and resting heart rate) 25%, consistency 10% and balance 10%. The full breakdown is part of Pro.
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 moved with it and whether the pattern repeated.Your first Weekly Review is free. Later reviews are part of Pro.
Illustrative example

What this can look like in the app.

Movement: 11,400 steps and 45 exercise minutes, well above your recent average.

Example
Confidence

Confidence rises when the same pattern repeats against your own baseline and drops when key signals are missing.

Next move

Try one small change, log it, then see whether the pattern repeats over the next week.

Example 1

Sleep: 7h 40m, close to your recent average.

Example 2

Recovery: resting heart rate 3 bpm above your average, so this part of the score is lower.

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.
Read next

Related guides.

Score anatomyA good health data app connects passive signals to daily decisionsThe best health data app turns daily signals into decisionsA habit tracker can show what your routines do to your readings
On the App Store

Want a Life Index from your own data?

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