Function Health

3.3
19 reviews
10K+
Downloads
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.

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.
Updated on
Dec 19, 2025

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

3.3
19 reviews
Zot O'C
December 9, 2025
Fo not watse you money. This whole company does not understand technology. Horrible ui fpr app, horrible website, broken constantly. Really it is a scam to sell you more. I had to click through 30+ add ons to schedule the second lab set. I just wanted the ones I paid for. Nope, I have to wait for slowest site to load and then click no. I show up to my appointment and there is an appointment but no labs. I am trying to contact support but it never works just spins on a blank page.
1 person found this review helpful
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M
November 21, 2025
Do not use this service. I recently purchased this service after seeing all the tests it offered. however, after purchasing the membership I quickly learned that many of the tests it shows on the main web page are at an extra cost and not the bargain it claimed to be. I attempted to cancel only 10 minutes later never using the service. I am still waiting to get a refund after over a week and sending multiple emails. you cannot one click cancel. Terrible business!!!!
4 people found this review helpful
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Egermenildus
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.
3 people found this review helpful
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What’s new

This update includes:
• UX improvements and bug fixes