Function Health

262 reviews
Content rating
Everyone
10K+
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Content rating
Everyone
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About this app

Function membership helps you take control of your health with 160+ lab tests each year, personalized Protocols, and Private AI Chat—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.

PRIVATE AI CHAT
Ask questions about your results, identify meaningful patterns, and figure out where to focus next, with Private AI Chat—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.
100 Healthy Years
Updated on
Aug 28, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • This app may collect these data types
    Location, Personal info and 6 others
  • Data is encrypted in transit
  • Data can’t be deleted

Ratings and reviews

259 reviews
J Kagsl
August 15, 2026
With all the data available through blood tests, this app has so much potential. However as of today, the chat version won't work at all because when you type in Google keyboard at the bottom of the screen, the words you are typing are hidden behind the keyboard and so you can not see what you have typed. Also you can not hit the send arrow to send your question to the chat AI. Hopefully they continue to develop the app.
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Function Health, Inc.
August 15, 2026
Hi there, we're sorry to hear you're running into issues with the chat experience in the app. We appreciate you bringing this to our attention. If you're still experiencing this issue, please reach out to us at hello@functionhealth.com and our team would be happy to assist you further.
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October 7, 2025
I would appreciate receiving notifications for every new result as they become available, rather than random generic alerts. Additionally, once a result has been viewed, it should no longer be marked as “new.” Keeping items flagged as new after they’ve been seen creates unnecessary confusion. Additionally, the volume of email could be reduced. It would be helpful to have the ability to unsubscribe from specific categories of emails instead of opting out of all communications at once.
21 people found this review helpful
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Melissa Settles
September 2, 2026
I'm so glad I decided to take this test. The app is easy to use, the information is easy to understand, and I love all the nutritional suggestions. I have more confidence that I'm heading in the right direction with my health. Function Health takes the guesswork out of the areas that I need to focus on. Very impressive and highly recommend!
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What’s new

This update includes:
• UX improvements and bug fixes