Function Health vs HELD Health

Function membership helps you take control of your health with 160+ lab tests each year, personalized Protocols, and Private AI Chat powered by Medical Intelligence—all backed by advanced science and your real data. Built with top doctors, Function gives you the power to understand your body, track how it evolves, and make meaningful change. NOW AVAILABLE: HOME OR OFFICE BLOOD DRAWS Schedule a concierge blood draw at your home or office. A licensed specialist comes to you and completes your blood draw in under 20 minutes. Available in select locations. 160+ LAB TESTS Membership includes testing for your heart, hormones, thyroid, liver, kidneys, toxins, nutrients, inflammation, autoimmunity, immunity and more. ADVANCED MRI & CT SCANS Detect early signs of cancer and hundreds of other potential conditions with the option to purchase advanced imaging for your brain, pancreas, liver, spine, ovaries, prostate, heart and much more. MEDICAL INTELLIGENCE Built with leading medical scientists, Function’s proprietary model brings together your health history and insights from a large population to help you better understand your health and find steps you can take today to support your health over time. PRIVATE AI CHAT Ask questions about your results, identify meaningful patterns, and figure out where to focus next, with Private AI Chat—powered by Medical Intelligence and built in partnership with top clinicians. CONNECT WEARABLES Connect Apple Health and other health devices and wearables to see how your activity, sleep, and daily habits affect your lab test results and long-term health. PROTOCOLS Translate your lab results, scans and health history into clear, evidence-based plans for nutrition, activity, and supplements—all customizable to your goals and preferences. UPLOAD HEALTH RECORDS Upload past lab test results, scans, and other medical records for a more complete view of your health, all in one secure place. PROGRESS YOU CAN SEE Twice-yearly and On-Demand testing helps you track your results over time, monitor for early signs of disease, and identify where to focus next. ADVANCED LAB TESTS Membership includes 160+ lab tests, plus the option to purchase advanced On-Demand tests for: - Detection of 50+ cancers - Alzheimer’s risk detection - MTHFR gene variants - Advanced MRI and CT scans starting at $365 - Food allergies and sensitivities - …and much more ACCESSIBILITY What could cost as much as $15,000 on your own is included with membership for just $365/year. Lab testing is available at over 2,000 lab locations across the US, with no insurance needed. SECURITY Function was built for privacy and security. Function is built to HIPAA standards. Your information is secure. How it works: 1. Join Function and schedule your first set of lab tests. 2. Get your results and personalized Protocols. Ask questions with your Private AI Chat. 3. See your progress with 60+ lab tests at your Mid-Year Test. 4. Purchase MRI or CT scans and other advanced On-Demand Tests any time. DISCLAIMER Function Health is a technology company and not a laboratory or medical provider. All laboratory and medical services are provided by independent third parties. Function Health does not offer medical advice, laboratory services, a diagnosis, medical treatment, or any form of a medical opinion; its services are not a substitute for medical care, medical advice, and/or a detailed discussion with a physician or other licensed provider. If you have any questions regarding any laboratory results or any other information that you access through Function Health, you should contact a physician or other licensed provider. All material, information, data, and content that Function Health provides is strictly for general information purposes. For additional important information: https:// www.functionhealth.com/terms-of-service.

HELD is currently available by invitation as we thoughtfully expand access. Join the waitlist at get-held.com, and we’ll invite you as soon as we’re ready. You take your health seriously. You wear the ring, read your labs, watch your trends — and still end up holding the whole picture together in spreadsheets, screenshots, and memory. Held is the system that does it for you. It brings your full health picture into one place — wearables, labs, biomarkers, medications, vitals, and records — owned and directed by you. Then it adds a layer of intelligence on top, reading across all of it so the signal doesn't get lost. Whether you're deep into the work or just getting serious about it, you walk into every appointment as the most informed person in the room. You don't need more data. You need a system. Sync the signals you already track — Apple Health, Oura, WHOOP, and more. Upload lab PDFs for AI-powered parsing, then watch your biomarkers trend over time. Intelligence that sees the whole picture Held's AI reads across your labs, wearables, medications, and history together — not one number at a time. Ask questions in plain language and get clear, contextualized answers grounded in your actual data. Real explanations, not platitudes. As your data grows, the guidance gets sharper — a continuous intelligence layer that understands where you've been and what's changing now. Track medications and supplements Manage everything you take, with interaction flags and reminders. Follow biomarkers over time and see results against standard reference ranges — normal, borderline, or flagged. Monitor your vitals Heart rate, blood pressure, sleep, activity, HRV, and more, with trends across days, weeks, and months. Bring your care team in Held is built for collaboration with the people who guide your care — not to replace them. Discover vetted longevity, precision, and integrative providers, then bring a provider into your health picture by sharing a private, permissioned view, on your terms. You choose what they see, you stay in control, and you can change it anytime. Held does not provide medical diagnoses or treatment. Always seek the advice of your doctor or another qualified health provider in addition to using this app, and before making any medical decisions. Your data, your control Granular consent for every category of data. Encrypted in transit and at rest. No ads — ever. Held is in alpha, and we'd love your feedback. All product names, logos, and brands are the property of their respective owners. Held is not affiliated with, endorsed by, or sponsored by Apple, Oura, WHOOP, or any other device maker.