Comparison

DexaFit ai vs Function Health

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

Head to head
About

DexaFit ai

This app uses AI and medical-grade diagnostics to analyze your body composition, metabolic health, and biological age. It connects these insights with your lifestyle to provide personalized guidance for a healthier and longer life.

Highlights
  • AI-powered health analysis
  • Medical-grade diagnostics
  • Track VO₂ max
  • Visceral fat and muscle quality monitoring
  • Estimate biological age
  • Personalized health insights
  • Health App integration
Features
Read full description

Connect the dots between your lifestyle, fitness, weight loss, and longevity. DexaFit ai combines artificial intelligence with medical-grade diagnostics to track VO₂ max, visceral fat, muscle quality, bone density, body composition, and metabolic health. It integrates these insights with your lifestyle patterns to estimate your biological age and deliver personalized insights to help you live happier, healthier, stronger, and longer. With Health App integration, DexaFit ai shows how your choices shape these key metrics—reinforcing the actions that drive the most meaningful improvements in health and longevity. Disclaimer DexaFit ai is a general wellness app and does not replace professional medical advice, diagnosis, or treatment. Always consult your doctor or other qualified health provider with any questions about your health or before making medical decisions.

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.

Screenshots

DexaFit ai4 screens
Function Health4 screens

Verdict

The call

The clearest difference is rating: Function Health at 4.9 against DexaFit ai's 3.5. Function Health also leads on review sentiment (62% vs 24%) and ratings volume (25K vs 41). DexaFit ai's advantage is monetization model (ad-supported vs subscription) and device support (3 vs 1). On price, update cadence, 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

Function Health holds the better App Store score, 4.9 against 3.5. That said, the two scores are not equally well evidenced: Function Health has 25K ratings behind it against 41, so its average is the more settled of the two. Written reviews point the same way: 24% of DexaFit ai's written reviews are positive against 62% of Function Health's.

UpkeepUpdate frequency

DexaFit ai ships an update every 2 weeks, Function Health weekly. The most recent releases landed on September 20, 2026 and September 24, 2026 respectively.

Scorecard5 real differences · 5 level
DexaFit ai versus Function Health: the parameters behind the verdict, then further details
ParameterDexaFit aiFunction Health
PriceFreeFree
Rating3.5 (41 ratings)4.9 (25K ratings) — better
Positive reviews24.0% of reviews61.9% of reviews — better
Number of ratings4125K — better
Update frequencyEvery 2 weeksWeekly — better
AdsNoNo
In-app purchasesNoNo
MonetizationAd-supported — betterSubscription
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.4 — better16.4
Further details — not scored
Size109 MB199 MB
Age rating17+17+
DeveloperDexaFitFunction Health

Customer experience

DexaFit ai

All ratings41 ratings
Positive53.7%
Neutral14.6%
Negative31.7%
Written reviews25 reviews
Positive24.0%
Neutral24.0%
Negative52.0%

Function Health

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

Bugs and requests

DexaFit ai

Not enough reviews yet to summarise bugs or 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

In-app purchases

None

DexaFit ai

No in-app purchases

None

Function Health

No in-app purchases

Questions

Is DexaFit ai free?
DexaFit ai is free to download, with no in-app purchases.
Is Function Health free?
Function Health is free to download, with no in-app purchases.
Which has better reviews, DexaFit ai or Function Health?
Function Health is rated higher. DexaFit ai averages 3.5 out of 5 from 41 ratings, while Function Health averages 4.9 from 25K ratings.
Do DexaFit ai or Function Health have ads?
Neither DexaFit ai nor Function Health shows ads.
Which is updated more often, DexaFit ai or Function Health?
DexaFit ai ships an update every 2 weeks, and Function Health weekly. Most recently, DexaFit ai was updated on September 20, 2026 and Function Health on September 24, 2026.

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