Data is everything in my world. As an engineer, I could track anything with enough data. It should come as no surprise that I'm fascinated by finding ways to track my Sjogrens symptoms and other health data. This will be a living document, because as I try new apps and devices I'll add to it. Note that I'm only including medical tracking apps and not food logging, weight loss, or fitness apps. There are too many of these to count and everyone has their own preference. Also, I only use Android products. Sorry, Apple users! Apps (Items in BOLD are currently in use) Symptom & Medication Tracking WebMD Allergy I used this for a little while to try to help me determine when I was probably going to have a flare-up based on the allergen in the air. As far as environmental allergies go I'm pretty much only allergic to dust, which I could get exposed to even on a day when the dust was low according to this app. I could see it being useful to ...