Daylumen
reads your health data in plain language.
Daylumen is a free iPhone app that reads the sleep, activity and heart data already in Apple Health, plus photos you give it access to, and tells you in plain words how today compares with your own usual range. No ring or watch required; the reading is computed on your iPhone. iOS 17 or later.
- Platform
- iPhone · iOS 17+
- Price
- Free · one-time purchase unlocks deeper tools
- Version
- 1.13.0 · 2026-10-15
Daylumen is one of a family of iPhone apps →
Free · iPhone · iOS 17+
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How is Daylumen different from a health dashboard?
Daylumen works quietly in the background, from data you already have — no ring, no wristband, no daily logging.
It reads your days
Your photos and your phone’s quiet signals become context — time outdoors, travel, late nights — so Daylumen understands what actually shapes your sleep, energy, and activity.
It tells you who you are
Your rhythm, how you recover, what throws you off. A portrait of you — an early bird who bounces back fast, most thrown by late nights — drawn from your own patterns, not a wall of charts.
It shows up when it matters
A gentle word in the morning when there’s something worth knowing — “you slept less than usual, go easy today.” Never a nag, never more than once a day, quiet when all is well.
“Real health happens in how you live your days — and that’s already in your pocket.”
Why does Daylumen use plain words instead of charts?
Most health apps drown you in steps, rings, and HRV — and never tell you what any of it means for your life. Others lock the answer behind a $300 ring and daily homework. Daylumen does neither.
In plain language
No r-values, no clinical charts, no jargon. Daylumen says what it sees in words that mean something for your day.
No hardware, no logging
Just the iPhone you already carry. Nothing to buy, nothing to check off every day.
Honest about what it knows
When a signal is weak, we say so. We never wrap uncertainty in a scary number or pretend to be your doctor.
Does Daylumen upload my health data and photos?
Photos and health data stay on your iPhone. Photos are read on-device for context; originals, faces and location never go anywhere. No account, no cloud. Only anonymous usage statistics leave the device, and you can switch them off.
Never sold or shared, never a diagnosis. Daylumen is a wellness read, not medical advice, and has no ads.
Frequently asked questions
Do I need a wearable?
No. Daylumen works with just your iPhone — the photos you take and the signals your phone already collects. No ring, no wristband, no extra hardware.
Is it a medical app?
No. It’s a wellness companion that gives you a plain-language read on your patterns. It never diagnoses, and it tells you when it’s uncertain.
How does it use my photos?
Photos are read on-device for context — time outdoors, travel, late nights. They never leave your phone. No faces, no locations, no uploads. What it takes from a photo
Is it really free?
Free to download, with no ads and no subscription. A one-time in-app purchase unlocks the deeper tools; the daily reading stays free.
What iPhone do I need?
Any iPhone running iOS 17 or later.
How is this different from Apple Health?
Apple Health collects numbers from devices. Daylumen reads your life — the context behind those numbers — and tells you what it means in plain language.
See your last six months, read in plain language.
Free · iPhone · iOS 17 or later
Download on theApp Store