The story behind it
“We believe health data should speak plainly. Heart rate variability is one of the most honest signals of stress — it deserves to be understood, not buried in a graph.”
Why we built it
01Problem
Apple Health quietly records HRV data that most people never see. The apps that do surface it either drown you in clinical charts or demand daily manual logging — so the most useful signal in your phone stays unread.
02The Idea
Tuning
03The Creation
We built Tuning to read Apple Health's SDNN data and turn it into a clear personal readiness score. No manual logging — it reads what's already there, explains what it means, and helps you plan recovery around your real stress.
This creation began as #010 in our idea archive.
