Function Health

Function Health

100 Healthy Years

24K ratings
324 reviews
Free

Details

  • Released
  • Updated
  • August 29, 2024
  • August 4, 2026

Features

Function Health screenshot #1 for iPhone
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Function Health screenshot #7 for iPhone
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About

Take control of your health with comprehensive lab testing, personalized protocols, and AI-powered insights. Understand your body's data, track changes over time, and make informed decisions for long-term wellness. Connect wearables and upload records for a complete health picture.

160+ lab tests annually
Personalized health protocols
Private AI Chat for results
Connect health wearables
Advanced MRI & CT scans
Upload health records
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What users say

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+1

What's New in Function Health

1.37

August 4, 2026

This update includes: - UX improvements and bug fixes

More

Events

Read more about Introducing: Private AI Chat

Introducing: Private AI Chat

Your questions answered.

Nov 19, 2025 Dec 20, 2025

User reviews

Not Working...Revised

This app was great until it quit working. I open it up and it quickly just turns into a black screen that I can't do anything with.

Edit: Adjusting my rating. Customer service has been on top of it. Fantastic customer service!

Scheduling/calendar for women is GARBAGE

The scheduling ability for menstruating women is awful. Some tests have to be scheduled within certain number of days of the beginning of the menstrual cycle but function will block it off, eg. my period starts on the 10th I have to schedule a test on day 2-4 of my cycle but functions scheduling calendar will not allow me to schedule until the 18th. That’s not how math works, 2-4 days after the 10th is the 12th-14th. Other tests have to be scheduled within 19-21 days of the last period but I can’t put that my period started on the 10th if it’s the 11th. To make things worse, you can’t call them you have to go back and forth with their chat agents and you spend hours trying to get tests scheduled. I spent an entire day trying to get scheduled but at a certain point the chat agent stopped responding I’m guessing it was the end of their day. Eventually I just “tricked” the calendar to schedule a test understanding the limitations but I don’t even know if I’m scheduled for the right tests which is concerning considering the cost of all the additional tests. At this point it’s not worth the money and after this year I’ll be going to my primary care doctor for tests. Their scheduling ability is GARBAGE!
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Great app

The AI app provides instant Information and helpful protocols

Rating pending.

Just discovered I was billed a second year without my consent. Love the app and very helpful. Able to get my MD to order the labs now that I know more. No need for more Function. Have contacted billing dept and waiting for refund. Will be happy to update my review when I hear back.

Black screen

For the last few weeks, this app has been buggy. Please fix. Used to work well without issue so maybe revert back to previous version.

User experience

🐞

Reported Bugs

2 issues

App sometimes redirects back to the home screen when trying to view results

Bug

Occasional typos and formatting issues in the app

Bug

Requested Features

3 requests

More customization options in the app settings

Feature

Ability to print or export test results and recommendations

Feature

Specific supplement recommendations rather than broad suggestions

Feature

FAQ

What does Function Health do?

Function Health provides a membership that includes over 160 lab tests annually, personalized health protocols based on your data, and a private AI chat to help you understand your results. It aims to give you control over your health by tracking your body's evolution and facilitating meaningful changes.

What are the key features of Function Health?

Key features include over 160 lab tests covering various health markers, advanced MRI and CT scans for early detection, a private AI chat for result interpretation, wearable device integration, customizable protocols for nutrition and activity, and the ability to upload past health records.

How much does Function Health cost?

Membership for Function Health is priced at $365 per year, which includes lab testing that could otherwise cost significantly more. Additional advanced tests, such as MRI and CT scans, can be purchased separately.

What kind of lab tests are included?

Membership includes over 160 lab tests for heart health, hormones, thyroid, liver, kidneys, toxins, nutrients, inflammation, autoimmunity, and immunity. You also have the option to purchase advanced on-demand tests for cancer detection, Alzheimer's risk, and food allergies.

Can I use Function Health with my existing health data?

Yes, Function Health allows you to connect Apple Health and other health devices and wearables to see how your daily habits impact your health. You can also upload past lab test results, scans, and other medical records for a comprehensive view of your health history.