Privacy Policy
What we collect
Aggregate page-view analytics only. No accounts, no ad retargeting, and no personal health profiles stored by this site.
What stays on your device
Tool inputs such as age, estimated max heart rate, sleep duration, and lift numbers run entirely in your browser and are not sent to us.
Companion apps
Zone 2 Longevity Coach, Aurnia, and Repvy each have their own privacy disclosures in the App Store. This page covers the website only.