Has anyone tried the app 'Visible'?

Hi Sally

Yes Ive been using it for a couple of weeks on my iPhone 12 and find it does a pretty good job of tracking my "stability". Doing a nightly symptom check-in with the ability to customise which symptoms to track is ok but hopefully in future they will include the ability to log symptoms as they occur. The morning check-in lets you log your sleep quality as well as using the camera & flash to check your heart rate and HR variability. I dont quite understand how the phone & app can measure these vitals, but so far the stability score that comes from the morning check-in has been a good indicator of how far I can push or pace myself each day.