Comparison

Function Health vs Flourish AI

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Function Health

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.

Highlights
  • 160+ lab tests annually
  • Personalized health protocols
  • Private AI Chat for results
  • Connect health wearables
  • Advanced MRI & CT scans
  • Upload health records
Features
Read full description

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.

About

Flourish AI

This intelligent health partner helps you manage digestive conditions and optimize nutrition. Log meals by photo, voice, or text to receive personalized insights and a dynamic care plan. It provides custom meal plans, recipes, and grocery lists based on your wellness objectives.

Highlights
  • Personalized Trigger Score for meals
  • AI-generated care plans
  • Custom meal plans and recipes
  • Automated grocery lists
  • Guided health experiments
  • 24/7 AI expert on-demand
  • Effortless meal logging via photo, voice, or text
Read full description

Stop the frustrating guesswork of managing your health. Whether you're navigating a chronic condition like IBS, GERD, or IBD, dealing with frustrating symptoms like bloating, acid reflux, and fatigue, or simply looking to optimize your nutrition, Flourish AI is the intelligent partner that creates a dynamic care plan to help you thrive. Experience its power from your very first entry. Log any meal by photo, voice, or text and instantly receive a personalized Trigger Score. Backed by research, Flora explains how food impacts your body—from causing symptoms to affecting your energy. Get immediate, actionable insights to start feeling your best, faster. MEET FLORA, YOUR PROACTIVE HEALTH STRATEGIST: • Insights Delivered to You: Beyond the initial score, Flora connects the dots between your meals, lifestyle, and symptoms. Wake up to actionable insights that uncover hidden patterns in your health. • Master Your Nutrition: Tell Flora your wellness objectives, and it automatically calculates your ideal macronutrient (protein, carbs, fat) and micronutrient goals. Flora handles the complex calculations so you can focus on results. • Your AI-Generated Care Plan: Go from insight to action. Flora builds a personalized care plan with custom meal plans, trigger-safe recipes, and automated grocery lists that align with all your nutritional targets. Simply ask and receive your personalized action plans. • Guided Experiments: Ditch overwhelming diets. Flora proactively suggests small, manageable experiments, continuously refining your care plan based on real results. • 24/7 Expert On-Demand: Ask Flora anything, day or night. Get immediate, culturally-aware answers and recommendations based on a vast knowledge base of clinical research. EFFORTLESS LOGGING, POWERFUL RESULTS: • Log Meals for Full Insight: Snap a photo, speak, or type any meal. Each entry powers your Trigger Score analysis and provides a full breakdown of its macronutrients and micronutrients. • Track More Than Food: Use natural language to log symptoms, stress, sleep or other lifestyle facts. This crucial data helps Flora identify non-food triggers and understand the complete picture of your health. FOR ANYONE SERIOUS ABOUT THEIR HEALTH: Flourish AI is designed for you if you're managing a digestive condition, seeking to improve your overall wellness, or simply want a smarter, more powerful way to optimize your nutrition than a generic meal logger can offer. Your health journey deserves more than a one-size-fits-all approach. Download Flourish AI today and get a personalized care plan that evolves with you. Note that Flourish AI provides educational guidance to help you discuss nutrition and symptoms with your clinician. Flourish is not a substitute for professional medical advice, diagnosis, or treatment. Individual responses to foods vary. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.tryflourish.ai/privacy

Screenshots

Function Health4 screens
Flourish AI4 screens

Verdict

The call

Function Health and Flourish AI both sit at 4.9 stars, but that hides the real split: 100% of Flourish AI's written reviews are positive against 62% of Function Health's. Function Health's advantage is in-app purchases (none vs 1) and ratings volume (25K vs 21). On price, rating, update cadence and ads there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Flourish AI sells 1 in-app purchase, starting at $9.99 per month. Function Health asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.9 for Function Health against 5.0 for Flourish AI. That said, the two scores are not equally well evidenced: Function Health has 25K ratings behind it against 21, so its average is the more settled of the two. Written reviews are what separate them: 62% of Function Health's written reviews are positive against 100% of Flourish AI's.

UpkeepUpdate frequency

Function Health ships an update weekly, Flourish AI every 9 days. The most recent releases landed on October 25, 2026 and October 20, 2026 respectively.

Scorecard4 real differences · 6 level
Function Health versus Flourish AI: the parameters behind the verdict, then further details
ParameterFunction HealthFlourish AI
PriceFreeFree
Rating4.9 (25K ratings)5.0 (21 ratings) — better
Positive reviews61.8% of reviews100.0% of reviews — better
Number of ratings25K — better21
Update frequencyWeekly — betterEvery 9 days
AdsNoNo
In-app purchasesNo — betterYes
MonetizationSubscriptionFree — better
DevicesiPhoneiPhone, iPod — better
Requires iOS16.415.6 — better
Further details — not scored
Size203 MB45 MB
Age rating17+17+
DeveloperFunction HealthflourishAI labs, INC.

Customer experience

Function Health

All ratings25,022 ratings
Positive99.0%
Neutral0.4%
Negative0.6%
Written reviews348 reviews
Positive61.8%
Neutral5.5%
Negative32.8%

Flourish AI

All ratings21 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews17 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Function Health

Reported bugs

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

Requested features

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

Flourish AI

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Function Health

No in-app purchases

1 purchases

Flourish AI

Subscriptions1
  • FlourishAI Premium$9.991 Month

Questions

Is Function Health free?
Function Health is free to download, with no in-app purchases.
Is Flourish AI free?
Flourish AI is free to download, with in-app purchases available.
Which has better reviews, Function Health or Flourish AI?
Flourish AI is rated higher. Function Health averages 4.9 out of 5 from 25K ratings, while Flourish AI averages 5.0 from 21 ratings.
Do Function Health or Flourish AI have ads?
Neither Function Health nor Flourish AI shows ads.
Which is updated more often, Function Health or Flourish AI?
Function Health ships an update weekly, and Flourish AI every 9 days. Most recently, Function Health was updated on October 25, 2026 and Flourish AI on October 20, 2026.

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