Comparison

Function Health vs Nuvo

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

Nuvo

Measure your biological age using Apple Health data and blood tests. Track biomarkers, recovery, and habits to understand and improve your healthspan. Personalized recommendations help you live younger longer.

Highlights
  • Biological age calculation from Apple Health
  • Blood test report analysis
  • Daily recovery and strain scores
  • Healthy habit tracking
  • AI-powered personalized recommendations
  • On-device data encryption
Features
Read full description

Discover your biological age and get personalized nutrition & supplement plans with Nuvo — your private on-device longevity coach. Analyze Apple Health data, blood tests, and biomarkers for daily scores, recovery insights, and targeted protocols to optimize your healthspan. Nuvo turns 21 longevity biomarkers into actionable intelligence. Full unlock of the below features are available as part of a Nuvo paid subscription plan & free trial: Clinical Grade Biological Age • Instant biological age from Apple Health data • Upload blood test reports for clinical grade biological age calculation • Pace of aging that measures how fast your body is aging • Science-backed biomarkers updated in real-time with trends Daily Recovery and Strain Scores • Know how ready you are to perform for the day • Recovery measured with sleep, heart rate variability, resting heart rate, and respiratory rate metrics • Strain measures your cardiovascular and muscular exertion to determine how hard you should train for the day • Log interventions (sauna, cold plunge, etc) to learn what actually improves next-day recovery Healthy Habit Tracker • Real-time tracking of proven longevity habits (sleep, strength training, running, etc) • Habits updated automatically from Apple Health, no manual entry • Personalized recommendations that actually move your biological age • Progress charts showing your age reversal over time Personalized Nutrition & Supplement Plans • Biomarker-driven food recommendations: Enjoy vs. limit, ranked by your out-of-range priorities • Explanations: Why specific foods help or hurt each biomarker • Supplement protocols: Targeted doses, timing, and pairings for maximum impact on your biomarkers • Built from your fitness, blood work, and biological age data AI Analysis w/ Apple Intelligence • Analyzes correlations across biological age, pace of aging, biomarkers, recovery, and habits • Reveals what habits actually reduce your biological age • Recommends habits to further lower your biological age • Reveals what interventions actually improve next-day recovery Privacy-First & Apple Health Native • Seamless Apple Health integration (no extra logins) • All calculations and data on-device, encrypted, and secure Apple Integrations • Works with Apple Watch, Oura Ring, and Garmin wearables for real-time notifications and health tracking. • This app integrates with the Apple Health app (via HealthKit) to read specific data (e.g., steps, heart rate, workouts) to generate your biological age and track habits. • Powered by Apple Intelligence with on-device AI features. Not a medical device. Always consult your doctor. Perfect for anyone serious about longevity, anti-aging, and living younger longer. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Function Health4 screens
Nuvo4 screens

Verdict

The call

Function Health and Nuvo both sit at 4.9 stars, but that hides the real split: 100% of Nuvo's written reviews are positive against 62% of Function Health's. Nuvo also leads on device support (3 vs 1). Function Health's advantage is in-app purchases (none vs 2) and ratings volume (25K vs 4). 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. Nuvo sells 2 in-app purchases, starting at $4.99 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 Nuvo. That said, the two scores are not equally well evidenced: Function Health has 25K ratings behind it against 4, 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 Nuvo's.

UpkeepUpdate frequency

Function Health ships an update weekly, Nuvo every 5 days. The most recent releases landed on October 21, 2026 and October 7, 2026 respectively.

Scorecard6 real differences · 4 level
Function Health versus Nuvo: the parameters behind the verdict, then further details
ParameterFunction HealthNuvo
PriceFreeFree
Rating4.9 (25K ratings)5.0 (4 ratings) — better
Positive reviews61.8% of reviews100.0% of reviews — better
Number of ratings25K — better4
Update frequencyWeeklyEvery 5 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationSubscriptionFree with in-app purchases — better
DevicesiPhoneiPhone, iPad, Apple Watch — better
Requires iOS16.4 — better18.0
Further details — not scored
Size203 MB9 MB
Age rating17+12+
DeveloperFunction HealthFirefly Labs LLC

Customer experience

Function Health

All ratings24,942 ratings
Positive99.0%
Neutral0.4%
Negative0.6%
Written reviews348 reviews
Positive61.8%
Neutral5.5%
Negative32.8%

Nuvo

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 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

Nuvo

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Function Health

No in-app purchases

2 purchases

Nuvo

Subscriptions2
  • Nuvo Premium Monthly7 Days trial$4.991 Month
  • Nuvo Premium Annual7 Days trial$24.991 Year

Questions

Is Function Health free?
Function Health is free to download, with no in-app purchases.
Is Nuvo free?
Nuvo is free to download, with in-app purchases available.
Which has better reviews, Function Health or Nuvo?
Nuvo is rated higher. Function Health averages 4.9 out of 5 from 25K ratings, while Nuvo averages 5.0 from 4 ratings.
Do Function Health or Nuvo have ads?
Neither Function Health nor Nuvo shows ads.
Which is updated more often, Function Health or Nuvo?
Function Health ships an update weekly, and Nuvo every 5 days. Most recently, Function Health was updated on October 21, 2026 and Nuvo on October 7, 2026.

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