Health Diary
Living with MCAS involves a lot of detective work. When a bad day comes, you need the data and history to try and explain it.
Free for a week with a new account, no card needed. Then $5 a month, cancel any time. See pricing
How it works
Rate your day as it unfolds, log your flares, medications, activity and more.
Each day sits next to its forecast, to help you make sense of how you're feeling.
Every flare or rough day opens a case. Name the likely culprits, and close it.
A peek inside
How you feel, any flares, and what you took, ate and did, on one timeline beside that day's forecast. A hard day opens a case, ready for your best explanation.
Sample entries
What you get
Rate how you feel throughout the day, with as many notes as you like.
Log each flare as it happens: how bad it was and which symptoms you felt.
Tap to log your supplements, medications, and foods you take in the day.
Runs and walks, yoga and workouts, log your activity and how long you did it.
Weight, body fat, blood pressure, heart rate, temperature and sleep, tracked over time.
See what's behind your hard days: the culprits you name most, and how many cases you've solved.
Private by design
All your information is encrypted before it's stored. Your privacy is important.
No advertising, no data brokers. We don't share or sell your info with anyone.
Delete any entry, or your whole account and everything with it, any time.
Explain your hard days, and know you're steering well. The Health Diary is part of a subscription, along with the Weekly Forecast, forecast emails, and every tool to come. Every new account gets a free week of all of it, no card needed.
Free for a week with a new account, no card needed. Then $5 a month, cancel any time. See pricing