Comparison

Function Health vs Thrive25

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

Thrive25

Take control of your health and longevity with personalized preventive care plans, actionable lab test insights, and habit-building tools. Transform your approach to wellness and achieve optimal health.

Highlights
  • Preventive health and longevity planning
  • Lab test insights and biomarker analysis
  • Personalized health agendas and notes
  • Customizable health plans
  • Habit tracking and achievement system
  • Personalized home dashboard
Features
Read full description

Your goal isn’t just to survive - you want to thrive! Thrive25 gives you the tools to take control of your health. Key Features: Preventive Health Services Transform your "sick care" into true preventive health and longevity planning. - View recommended services and customize your plan. - Never miss an appointment with reminders and scheduling tools. - Empower yourself with personalized agendas and note-taking tools, transforming every doctor visit from a one-sided monologue into a productive dialogue. Lab Test Insights Know your body, understand your labs. - Dive into your lab results and learn how key biomarkers affect your future health. - Gain actionable insights to move results from "out of range" to "normal"—or even "optimal." - Take charge of your health journey with easy-to-understand, science-backed recommendations. Quick Wins for Big Impact Small habits, massive results. - Discover simple, effective actions tailored to your health goals and biomarkers. - Build habits, track progress, earn achievements, and celebrate your success as you thrive daily. Your Health at a Glance Easily navigate your personalized home dashboard to focus on what matters most to your health today and for years to come. Take the first step - because thriving starts here. Download Thrive25 now!

Screenshots

Function Health4 screens
Thrive254 screens

Verdict

The call

Function Health and Thrive25 both sit at 4.9 stars, but that hides the real split: 100% of Thrive25's written reviews are positive against 62% of Function Health's. Thrive25 also leads on monetization model (free vs subscription). Function Health's advantage is update cadence (weekly vs every 5 weeks) and ratings volume (25K vs 3). On price, rating, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

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 Thrive25. That said, the two scores are not equally well evidenced: Function Health has 25K ratings behind it against 3, 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 Thrive25's.

UpkeepUpdate frequency

Function Health ships an update weekly, Thrive25 every 5 weeks. The most recent releases landed on September 24, 2026 and August 17, 2026 respectively.

Scorecard4 real differences · 6 level
Function Health versus Thrive25: the parameters behind the verdict, then further details
ParameterFunction HealthThrive25
PriceFreeFree
Rating4.9 (25K ratings)5.0 (3 ratings) — better
Positive reviews61.9% of reviews100.0% of reviews — better
Number of ratings25K — better3
Update frequencyWeekly — betterEvery 5 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationSubscriptionFree — better
DevicesiPhoneiPhone, iPod — better
Requires iOS16.415.1 — better
Further details — not scored
Size199 MB77 MB
Age rating17+4+
DeveloperFunction HealthThrive25, Inc.

Customer experience

Function Health

All ratings24,661 ratings
Positive99.0%
Neutral0.4%
Negative0.6%
Written reviews341 reviews
Positive61.9%
Neutral5.6%
Negative32.6%

Thrive25

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 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

Thrive25

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Function Health

No in-app purchases

None

Thrive25

No in-app purchases

Questions

Is Function Health free?
Function Health is free to download, with no in-app purchases.
Is Thrive25 free?
Thrive25 is free to download, with no in-app purchases.
Which has better reviews, Function Health or Thrive25?
Thrive25 is rated higher. Function Health averages 4.9 out of 5 from 25K ratings, while Thrive25 averages 5.0 from 3 ratings.
Do Function Health or Thrive25 have ads?
Neither Function Health nor Thrive25 shows ads.
Which is updated more often, Function Health or Thrive25?
Function Health ships an update weekly, and Thrive25 every 5 weeks. Most recently, Function Health was updated on September 24, 2026 and Thrive25 on August 17, 2026.

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