About
Make the invisible
clock visible
Why Trana exists
Every person has a circadian rhythm — a 24-hour cycle that governs when you feel alert, when you should eat, when your body repairs itself, and when you should sleep. It's the most fundamental pattern in human biology.
But you can't see it. No consumer app tracks it. Your Apple Watch collects the data — heart rate, movement, sleep — but no one computes the shape of your rhythm. No one tells you when that shape is drifting in ways that research links to metabolic disease, mood disorders, and accelerated aging.
Trana changes that. We take the raw data your Watch already collects and compute the circadian metrics that scientists use in peer-reviewed research — relative amplitude, interdaily stability, intradaily variability, acrophase timing. Then we translate those numbers into something you can understand and act on.
We believe the most important health signal you're not tracking is the one that runs everything else.
The name
Trana comes from entrainment
In chronobiology, entrainment is the process by which your body clock synchronizes to external cues — light, meals, activity, temperature. When entrainment works, your rhythm is aligned. When it fails, you drift.
Trana is the heart of that word. It represents the connection between your biology and the world around you — the invisible sync that makes everything work.
Mission
“Make the invisible clock visible.”
Trana is built for one purpose: to give you access to a health signal that science values but no consumer app tracks. We don't diagnose. We don't prescribe. We surface patterns — and let you decide what to do with them.
Questions? Reach us at hello@trana.health