How Your Phone Reads Your Vital Signs
Four steps. Thirty seconds. No equipment. Here's exactly what happens when you scan.
Simple Steps to Get Started
Measuring your vitals takes less than a minute
Download the Free App
Grab Circadify from the App Store or Google Play. It's free, lightweight, and ready to use in seconds. No account required.
Face Your Camera
Hold your phone at arm's length so your face is in the frame. Find decent lighting — a window or lamp works great. The app shows you when you're positioned correctly.
Hold Still for 30 Seconds
Tap scan and stay still. Your camera picks up microscopic color changes in your skin caused by blood flowing beneath the surface. The app reads these signals to calculate your vitals.
See Your Results Instantly
Heart rate, HRV, stress index, breathing rate, and blood oxygen appear on your screen. Save them, share them, or just scan again tomorrow to see how you compare.
Ready to Try Your First Scan?
It takes less time than reading this page. Download Circadify and see your vital signs in 30 seconds.