Comparison

Withings 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

Withings

This app unifies your health data from devices and other apps, offering insights for weight loss, activity, sleep, and blood pressure management. It provides medical-grade precision and personalized coaching to help you understand your body and achieve long-term health goals. Share reports instantly with your doctor and track family health from one place.

Highlights
  • Unified health data from devices and apps
  • Weight and body composition monitoring
  • Activity and sleep tracking
  • Blood pressure and cardiovascular health management
  • Menstrual cycle and nutrition tracking
  • Family health profiles
  • Doctor report sharing
Features
Read full description

Whatever your goal—weight loss, activity, blood pressure management, or better sleep—the Withings App is your gateway to health management, offering education, insights, and a seamless way to stay connected. Built on clinical expertise, it unifies your health data to drive smarter decisions and lasting results. YOUR HEALTH ECOSYSTEM, SEAMLESSLY CONNECTED Easily install all your Withings devices and sync your data to bring your health universe together. ALL YOUR HEALTH APPS UNIFIED Connect your health apps like Apple Health, Strava, MyFitnessPal, and more to centralize your data with ease. TRUST MEDICAL-GRADE PRECISION, TO DRIVE PROGRESS Clinical-grade accuracy delivers reliable insights that help you make confident, informed decisions about your health. • WEIGHT & BODY COMPOSITION MONITORING • ACTIVITY MONITORING • SLEEP SCORE • HYPERTENSION MANAGEMENT • CARDIOVASCULAR DISEASE DETECTION • MENSTRUAL CYCLE TRACKING • NUTRITION TRACKING " SHAPE YOUR HEALTH JOURNEY Create a tailored health profile, monitor symptoms, and set achievable goals to better understand your body, stay motivated, and improve your health over time MULTIPLE PROFILES TO TRACK FAMILY HEALTH Track the health of your entire household from one app and easily share data between profiles for a more connected approach to care. INSTANTLY SHARE WITH YOUR DOCTOR Generate secure, shareable reports or send a live link to your health dashboard, giving your healthcare provider immediate access to your most up-to-date metrics. Withings+ POWERING YOUR JOURNEY TO LONGEVITY Precision health made personal—AI and in-app cardiologists guiding you forward. With Withings+, our premium subscription service, you decode your health through clinical reviews and AI assessments, delivering precise, tailored care to strengthen long-term habits and help support your journey toward a better, longer life. YOUR HEALTH SIMPLIFIED All metrics consolidated in one powerful Health Improvement Score to guide your long-term health. SPECIALIST CARE AT YOUR FINGERTIPS Get your ECG reviewed by a cardiologist within 24 hours — with an average wait time of just 4 hours (Observed Jan–Mar 2025). Feel confident knowing your heart health is in expert hands, quickly and reliably. DECODE YOUR BODY With Withings Intelligence, experience around-the-clock AI-driven insights, smart trend analysis, and personalized coaching to help you take control of your health. Kickstart your day with our brand new Vitalité Indicator. This powerful tool brings together key health metrics—including HRV, temperature, sleep patterns, and more — to evaluate your rest and effort levels. Based on these insights, it offers personalized suggestions to help you boost your energy and optimize recovery for the days ahead. You’ll also receive a detailed breakdown that can highlight early signs of potential illness and signal when it’s time to give yourself extra care. YOUR WEEKLY HEALTH BREAKDOWN Track your strengths and weaknesses each week to refine and boost your Health Improvement Score. ABOUT WITHINGS ​​Withings creates clinically validated health devices embedded in beautifully designed, easy-to-use products. A universe of insights all synced to a single source of truth, providing you with the ultimate way to stay connected to your health. Terms of use:https://www.withings.com/legal/applications-conditions#/legal/services-terms-and-conditions Privacy policy: https://www.withings.com/legal/applications-conditions#/legal/privacy-policy Medical compliance: https://www.withings.com/eu/en/compliance?srsltid=AfmBOoovZiYectAmYJC5gs2HhHrMxHAhPdN4NFQQI5RSImnQdrLoxKSc

About

Function Health

Gain deep insights into your health with advanced lab testing, personalized protocols, and AI-powered chat. Understand your body's evolution and make informed changes with data-backed guidance. Includes options for advanced imaging and convenient blood draws.

Highlights
  • 160+ lab tests annually
  • Personalized health protocols
  • Private AI Chat for results
  • Advanced MRI & CT scan options
  • Home or office blood draws
  • Connect wearables
  • 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 powered by Medical Intelligence—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. MEDICAL INTELLIGENCE Built with leading medical scientists, Function’s proprietary model brings together your health history and insights from a large population to help you better understand your health and find steps you can take today to support your health over time. PRIVATE AI CHAT Ask questions about your results, identify meaningful patterns, and figure out where to focus next, with Private AI Chat—powered by Medical Intelligence and 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

Withings4 screens
Function Health4 screens

Verdict

The call

The clearest difference is review sentiment: Function Health at 62% against Withings's 24%. Function Health also leads on in-app purchases (none vs 3) and rating (4.9 vs 4.6). Withings's advantage is ratings volume (370K vs 25K) and chart position (#48 vs unranked). On price 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. Withings sells 3 in-app purchases, starting at $9.99 per month. Function Health asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Function Health holds the better App Store score, 4.9 against 4.6. That said, the two scores are not equally well evidenced: Withings has 370K ratings behind it against 25K, so its average is the more settled of the two. Written reviews point the same way: 24% of Withings's written reviews are positive against 62% of Function Health's.

UpkeepUpdate frequency

Withings ships an update fortnightly, Function Health weekly. Both last shipped on November 5, 2026.

Scorecard9 real differences · 2 level
Withings versus Function Health: the parameters behind the verdict, then further details
ParameterWithingsFunction Health
PriceFreeFree
Rating4.6 (370K ratings)4.9 (25K ratings) — better
Positive reviews24.1% of reviews61.5% of reviews — better
Number of ratings370K — better25K
Update frequencyFortnightlyWeekly — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemiumFree — better
Best chart rank#48 — better—
DevicesiPhone, iPad, Apple Watch — betteriPhone
Requires iOS18.016.4 — better
Further details — not scored
Size461 MB206 MB
Age rating4+17+
DeveloperWithingsFunction Health

Customer experience

Withings

All ratings368,957 ratings
Positive90.0%
Neutral3.4%
Negative6.5%
Written reviews6,370 reviews
Positive24.1%
Neutral9.4%
Negative66.5%

Function Health

All ratings25,127 ratings
Positive99.0%
Neutral0.4%
Negative0.6%
Written reviews351 reviews
Positive61.5%
Neutral5.7%
Negative32.8%

User reviews

Withings

From 370K App Store ratings

What we love

  • ⭐ Excellent app and product integration
  • 📊 Comprehensive health tracking
  • 🔋 Good battery life on devices
  • 🤝 Helpful customer support

Room to improve

  • 🐛 Connectivity and syncing issues
  • 📈 Confusing or cluttered UI
  • 🔍 Lack of customization options
  • 💰 Expensive for some features

Function Health

From 25K App Store ratings

What we love

  • 🚀 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

Room to improve

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

Bugs and requests

Withings

Reported bugs

4 issues
  • Inconsistent weight data reporting
  • App crashes or freezes on launch
  • Inaccurate body composition measurements
  • Unreliable blood pressure readings

Requested features

4 requests
  • Improved sleep tracking and reporting
  • More granular data visualization
  • Ability to manually edit or delete measurements
  • Better integration with third-party apps

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

3 purchases

Withings

Subscriptions2
  • Withings+ Monthly offer14 Days trial$9.991 Month
  • Withings+ Annual offer14 Days trial$99.991 Year
One-time1
  • ECGs Cardiologist Review$59.99
None

Function Health

No in-app purchases

Questions

Is Withings free?
Withings is free to download, with in-app purchases available.
Is Function Health free?
Function Health is free to download, with no in-app purchases.
Which has better reviews, Withings or Function Health?
Function Health is rated higher. Withings averages 4.6 out of 5 from 370K ratings, while Function Health averages 4.9 from 25K ratings.
Do Withings or Function Health have ads?
Neither Withings nor Function Health shows ads.
Which is updated more often, Withings or Function Health?
Withings ships an update fortnightly, and Function Health weekly. Most recently, Withings was updated on November 5, 2026 and Function Health on November 5, 2026.

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