# Function Health — 100 Healthy Years

> Personalized health insights through lab tests, AI chat, and actionable protocols. (iPhone/iPad app by Function Health.)

- Source: https://appshunter.io/ios/app/function-health/id6471280307 (this page in markdown: same URL + `.md`)
- Developer: [Function Health](https://appshunter.io/developer/1715014524)
- Category: Health & Fitness, Lifestyle
- Price: Free
- Rating: 4.90/5 from 24,187 App Store ratings · 331 written reviews indexed
- Age rating: 17+
- Requires: iOS 16.4 · 183 MB
- Languages: American English
- Released: 2024-08-29
- Data updated: 2026-08-30
- Monetization: subscription
- User reviews in markdown: https://appshunter.io/ios/app/function-health/id6471280307/reviews.md

## What is Function Health?

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.

## Key features

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

## What do users think of Function Health?

Overall sentiment: positive

**Pros**

- 🚀 Seamless process for blood tests and results
- 📊 Comprehensive health insights and tracking
- 🧠 Helpful clinician notes and recommendations
- 👍 User-friendly and visually appealing app
- 💰 Affordable compared to other options
- 🔍 Deeper health analysis than regular doctor visits

**Cons**

- 🔍 Lack of communication and support responsiveness
- 🐛 Some bugs and usability issues in the app

**Commonly reported bugs**

- App sometimes redirects back to the home screen when trying to view results
- Occasional typos and formatting issues in the app

**Most requested features**

- More customization options in the app settings
- Ability to print or export test results and recommendations
- Specific supplement recommendations rather than broad suggestions

## Recent user reviews (10 of 331)

All indexed reviews: https://appshunter.io/ios/app/function-health/id6471280307/reviews.md

### 1/5 — Its all AI no human Dr reviewing

*2026-08-25, version 1.39.0*

When you flag that the summary of your blood work doesnt make sense - there are no humans to address it - you get AI pretending to be human messaging you and telling you - you can book an appointment and when you tell them when you're free to talk - the AI can't handle it and cant respond. So your summary is wrong and there are no humans involved or they are really bad employees who should be fired.

### 5/5 — Professional Custom Guidance

*2026-08-23, version 1.39.0*

I am so thankful to find a program that analyzes your biomarkers helping you to understand any deficiencies and how to correct them using proper nutritional advice, a supplement protocol to said optimum nutrition and gentle exercises to further promote a healthier lifestyle.  There is no longer any excuse for not having a better quality life as we age!

### 1/5 — Not Built for Women!!

*2026-08-22, version 1.39.0*

Update: nearly two months later I still haven’t been able to get the cycle tests. Labs aren’t open on weekends and walk in only. Very difficult to drop everything to go wait at quest and hope to be seen. Customer service confirmed they prioritize people with appointments.

I really wanted to love Function Health because the concept is great, but my experience with has been disappointing.

If you have irregular menstrual cycles, it doesn’t seem like they have a clear process for handling it. I had to repeatedly explain my situation, and instead of addressing my actual questions, I kept receiving canned responses that didn’t apply. I was passed between multiple agents, and each one seemed to respond without reading the conversation history.

My questions were about how my lab orders had changed, but I repeatedly received generic explanations about hormone testing that had nothing to do with what I was asking. For a premium membership, I expected personalized support and continuity, not to start over with every new agent.

The testing itself may be valuable, but the customer experience needs significant improvement—especially for members with irregular cycles. This common situation was clearly an after thought. A clear SOP for these cases and better continuity between support agents would make a huge difference.

### 5/5 — Jody

*2026-08-20, version 1.39.0*

This system is absolutely fantastic and I feel it help me to be in more control of my health

### 5/5 — More people should!

*2026-08-16, version 1.38*

Be your own best health advocate. Partner up with function health for critical feedback and share the results with your MD.  
Dr Kerry H Head OD

### 4/5 — Decent UX with exceptions

*2026-08-14, version 1.38*

You guys need to add push notification alerts as new markers come in. This is a no brainer. Second, when clicking into a marker than navigating back, the scroll state of the list resets to the top. Suggest preserving your last scroll position from the scrollable list view. Suggest adding placeholders among the data list for markers that were ordered but not yet arrived (you can grey them out or something). Or have a separate list for what’s to come, vs me having to go into Visit 1 or 2 to see.

### 5/5 — Love being about to get this info

*2026-08-11, version 1.38*

You don’t have to beg your doctor for certain labs. Get performed what you think is necessary and the walk through and personalized feedback is invaluable. I think the price for this is an absolute steal.

### 5/5 — Not Working...Revised

*2026-08-07, version 1.37*

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!

### 1/5 — Scheduling/calendar for women is GARBAGE

*2026-08-03, version 1.36.0*

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!

### 5/5 — Great app

*2026-08-01, version 1.36.0*

The AI app provides instant Information and helpful protocols

## Frequently asked questions about Function Health

### 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.

## Version history (last 5 releases)

### 1.40.0 — 2026-08-26

UX improvements and bug fixes

### 1.39.0 — 2026-08-17

This update includes:
- UX improvements and bug fixes

### 1.38 — 2026-08-11

This update includes:
- UX improvements and bug fixes

### 1.37 — 2026-08-04

This update includes:

- UX improvements and bug fixes

### 1.36.0 — 2026-07-30

UX improvements and bug fixes

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-30.*