In plain sight.
Visible provides the tools you need to understand your condition. Use data to pace your activity, manage your symptoms, and help move science forward.
The Visible app
Our free app is now in open beta.
See trends in your illness.
Check in with your symptoms, exertion and more, in less than one minute.
Use this data to track your long-term progress, and see what makes you better or worse.
Measure your body’s key signals.
Use your camera to measure your Heart Rate Variability (HRV), which correlates closely with symptom severity.
Our Pace Score™ compares your HRV against your recent baseline, to help guide your day.
Contribute to global research.
Your data is valuable. That’s why we’ll never share it without your permission.
But if you do want to share your data with researchers, you can enroll into approved studies and help move the science forward.
Unlock all-day-data with
Visible Plus includes a Polar™ heart rate monitor, to capture accurate, real-time data about your illness.
Track your heart rate variability, not just your heart rate, to get personalized insight on your autonomic nervous system and your condition.
Capture data from your upper arm, where wrist movement and blood flow don’t impact the reliability of your measurements.
Stream data in real-time so you can get instant pacing alerts. You’ll always know if you’re doing too much, not a minute too late.
The Polar Sense is designed for all-day wear. The device and band are waterproof and comfortable, for effortless tracking.
Pacing, made simple.
For people with energy-limiting illnesses, over-exertion can make symptoms worse.
Visible Plus helps you understand how exertion affects your health, and gives you realtime guidance on when to slow down.
Your health, measured.
Visible Plus uses heart rate, accelerometer and gyroscope data from the Polar Verity Sense™ to gain illness-specific insights.
Measure orthostatic intolerance, time spent upright and more.
Building visibility together
Backed by leading experts
Our science is supported by experts on energy-limiting conditions.
Guided by patients
People living with invisible illness have been involved in every step of building Visible.
Built with lived experience
Over half the Visible team live with invisible illnesses, including Long Covid and ME/CFS.
Meet our experts
Stop guessing, start measuring.
Join our movement as we improve the understanding of invisible illness.