Oura vs Function Health
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Oura
This smart ring and companion app provide daily health insights and personalized recommendations based on your body's biometrics. Track sleep, activity, and readiness with actionable guidance to improve overall wellness and understand your body's signals.
- Daily Sleep, Activity, and Readiness scores
- Accurate biometric tracking (heart rate, temp, SpO2)
- In-depth sleep analysis and optimization tips
- Advanced activity tracking for various movements
- Cycle insights and pregnancy tracking
- Stress resilience and recovery guidance
- Illness detection through body temperature shifts
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Meet Oura Ring - the revolutionary smart ring that translates your body’s most meaningful messages to transform how you feel every day. The award-winning Oura App is your personal health companion, delivering valuable insights and daily recommendations to help you to make health and wellness a daily practice. THREE DAILY SCORES Your Sleep, Activity, and Readiness scores give you a clear understanding of the state of your body with actionable guidance on how to stay balanced. ACCURATE BY DESIGN Your finger provides the most accurate reading for over 30 biometrics like heart rate, body temperature, blood oxygen, and more. BEST-IN-CLASS SLEEP MONITORING Wake up to in-depth analysis of your sleep patterns and personalized tips to optimize your routine, so you’ll feel more energized every day. ADVANCED ACTIVITY TRACKING From mountain climbing to meditating, Oura Ring tracks your daily movement while prioritizing balance and rest. Measure your daily activities, calories, steps, and inactive time. CYCLE INSIGHTS Better understand your body’s cycle patterns or help improve your chances of getting pregnant by tracking daily and monthly body temperature trends. STRESS RESILIENCE Understand how daily stress is affecting your body and learn how to be more resilient to stress by finding balance between moments of strain and recovery. RECOVERY Get personalized insights and guidance on how rest and recovery affects your overall Readiness Score. Feeling under the weather? Activate Rest Mode to give yourself a break. ILLNESS DETECTION Oura Ring monitors shifts in your body temperature and heart rate so you can tell when you may be getting sick. LONG-TERM TRENDS View your daily, weekly, and monthly trends, and discover how your choices and environment affect your body. TRACK HABITS WITH TAGS Customize your experience and test out new habits by adding tags — like "caffeine" or "alcohol" — and discover how your choices affect your sleep and recovery. Oura Ring is not a medical device and is not intended to diagnose, treat, cure, monitor, or prevent medical conditions or illnesses. Oura Ring is only designed for general fitness and wellness purposes. Please do not make any changes to your medication, daily routines, nutrition, sleep schedule, or workouts without first consulting your doctor or another medical professional.
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.
- 160+ lab tests annually
- Personalized health protocols
- Private AI Chat for results
- Connect health wearables
- Advanced MRI & CT scans
- Upload health records
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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
Verdict
The clearest difference is monetization model: Oura at free against Function Health's subscription. Oura also leads on ratings volume (301K vs 25K) and chart position (#13 vs unranked). Function Health's advantage is review sentiment (62% vs 49%). 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 4.9 for Oura against 4.9 for Function Health. That said, the two scores are not equally well evidenced: Oura has 301K ratings behind it against 25K, so its average is the more settled of the two. Written reviews are what separate them: 49% of Oura's written reviews are positive against 62% of Function Health's.
Both ship on a similar rhythm, roughly weekly. Both last shipped on September 25, 2026.
| Parameter | Oura | Function Health |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (301K ratings) | 4.9 (25K ratings) |
| Positive reviews | 49.3% of reviews | 61.9% of reviews — better |
| Number of ratings | 301K — better | 25K |
| Update frequency | Weekly | Weekly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Subscription |
| Best chart rank | #13 — better | — |
| Devices | iPhone, Apple Watch — better | iPhone |
| Requires iOS | 16.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 452 MB | 201 MB |
| Age rating | 4+ | 17+ |
| Developer | Oura Health Oy | Function Health |
Customer experience
Oura
Function Health
User reviews
Oura
From 301K App Store ratingsWhat we love
- 🚀 Accurate sleep tracking
- 👍 Comfortable and stylish ring
- 🔋 Long battery life
- 💡 Helpful insights and recommendations
- 👍 Seamless integration with Apple Health
Room to improve
- 🐛 Inconsistent activity tracking
- 🔒 Requires monthly subscription to access full data
- 🐛 Inaccurate sleep stage detection
- 🐛 Syncing and connectivity issues
- 🔋 Battery life deterioration over time
Function Health
From 25K App Store ratingsWhat 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
Oura
Reported bugs
4 issues- App crashes and freezes
- Inability to connect ring to new devices
- Disappearing or corrupted user data
- Inconsistent firmware updates
Requested features
5 requests- Ability to manually edit sleep and activity data
- More customization options for activity tracking
- Integration with more fitness apps and ecosystems
- Improved data visualization and trend analysis
- Cycle tracking and insights for women
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
Oura
No in-app purchases
Function Health
No in-app purchases









