Demetra unifies your health data and uses AI to guide proactive care for you and your family. Starting with just your age, sex, and basic history. For free.
Demetra is a doctor, a mother, and the person her whole family calls when something feels off.
Growing up in Cyprus, my mother was a physician. She didn't just treat illness. She watched over our family's health the way no system ever does. She knew our histories, caught things before they became problems, and made every appointment count. Most people never have that kind of person in their corner. Demetra is my answer to that gap.
We are on a mission to make proactive care the default for every family.
adults have undetected high blood pressure
of people with pre-diabetes are completely unaware
who should be on cholesterol medication have never been offered it
Reactive healthcare is failing us. We ought to do better for us and for our loved ones.
Your health score
A single, dynamic score tracking vitals, labs, and care compliance in one number. Know instantly if something needs your attention.
All your data
Upload lab results, screenshots, and PDFs. Connect Apple Health, wearables, and smart scales. Answer a few questions and Demetra fills in the rest. Every piece of your health picture, always up to date.
Proactive care plans
Demetra builds a personalized health timeline: blood tests, vaccines, screenings, checkups. Month by month, always current. Know exactly what to do, when, and why.
Family health
Add your parents, spouse, or children. Monitor their health scores, compliance, and alerts. Get notified when someone needs attention. Your whole family's health, in one place.
Doctor sharing
Generate a QR code with a clinical summary your doctor can scan in seconds: risk scores, trends, alerts, device data. Better data means better visits. For both of you.
Demetra runs dozens of checks in the background, translating clinical guidelines into plain language you can act on. New agents ship as we build the proactive health OS.
Built by physicians and scientists with 10+ years of clinical AI experience, behind every check.
Demetra tells you what you need to hear, not what you want to hear. If your numbers are concerning, we say so clearly. No alarmism to drive engagement. No sugarcoating. Trust is built on truth.
Every recommendation traces back to published clinical guidelines: USPSTF, AHA, ACC, ADA. We do not invent health advice. We translate what the best physicians already know. When the evidence is uncertain, we say that too.
Your father's diagnosis changes what you should be screening for. Your child's vaccine schedule matters to the whole household. We build for the family unit because that is how health actually works.
We use highly-evidenced clinical logic that is auditable and versioned. We do not let language models improvise with your health. But we also do not hide behind perfectionism: we ship, we learn, we improve. Every week.
We do not sell it. We do not monetize it. We do not share it without your explicit permission. Your health information exists to serve you and the people you choose to share it with. Full stop.
The free tier is not a teaser. It delivers the full standard of care for prevention. We believe everyone deserves to know their risks and what to do about them, regardless of income.
We exist to make your relationship with your doctor better, not to replace it. Better data going in means better conversations, better decisions, and better outcomes. We strengthen the care team, we do not bypass it.
The best treatment is the one you never needed. Demetra is designed to catch what can be caught early: before symptoms appear, before a diagnosis lands, before the window to act has closed. Proactive care is not a feature. It is the point.
We have spent 10+ years building clinical AI at the world's leading institutions. Published in Nature journals and JAMA.
