Track what matters
Log symptoms, vitals, energy, sleep, and mood in a few taps. Add notes when you want to, skip them when you don't. No required fields, no friction.
Now live on the App Store and Google Play
Your health story,
kept close.
Health Flare is a calm, private journal for people living with chronic illness. Track symptoms, spot patterns, and share what matters, with everything staying on your device.
How it works
Built for real days,
Built for real days,
not ideal ones.
Chronic illness doesn't follow a clean schedule. Health Flare is designed for the full range: the good days, the hard ones, and everything in between.
Spot your patterns
Health Flare surfaces symptom cycles, sleep correlations, and treatment effects: connections that are impossible to spot when you're in the middle of it.
Share on your terms
Export a PDF or CSV summary for your doctor or care team whenever you choose to. You pick the date range and exactly which data types are included.
Built for families too
Caring for a child with a complex condition? Health Flare supports multiple profiles with the same privacy guarantees for every person in your care. See how people set it up.
The app
A look inside.
Real screenshots from Health Flare, live now on the App Store and Google Play.
Privacy by design
No cloud. No accounts.
No cloud. No accounts.
No compromises.
Your health data is some of the most sensitive information that exists. We built Health Flare so we never see it. There is no server of ours to send it to.
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Stored on your phone, and in your phone's own backup Your records live in the app's private storage, which your phone encrypts when it has a passcode set. They are included in your iCloud or Google backup if you use one, so a new phone gets them back. Backups you export can be locked with a password. How phone backups are protected.
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No accounts required No sign-up, no profile, no identity tied to your data. Open the app and it's ready.
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Zero analytics or telemetry No crash reporters that phone home. No advertising identifiers. No tracking of any kind.
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Sharing is always optional Nothing is shared unless you export it. You choose the dates, the data types, and PDF or CSV. Once you've sent a file, it's out of the app's hands, so send it to someone you trust.
Health Flare is not a medical device and isn't a substitute for professional care. It's a personal record to help you spot patterns and have better conversations at appointments — always consult a qualified clinician about symptoms or treatment.
About
View on GitHub
Built by someone who lives it.
I'm a parent of a child with a chronic illness, and a software developer with two decades in tech. Health Flare exists because our family needed it.
I was inspired by Flaredown (a pioneering open-source symptom tracker) and built Health Flare to carry that mission forward with a modern application that supports people living with chronic illness and the families and dependants caring alongside them.
I value privacy, transparency, and visibility in everything I build. I'm using AI and LLMs extensively in this project, not to cut corners, but to give a solo developer the capacity to properly serve an underserved community. Every line of code not written by me is reviewed and tested by me, held to the same standard I expect as both the app's author and one of its users.
Free to download, wherever you are.
Health Flare is live on the App Store for iPhone and on Google Play for Android. No account, no ads, nothing to sign up for.