UPRIGHT vs Function Health
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
UPRIGHT
This app connects to a wearable device to provide real-time feedback on your posture. It helps you build awareness, strengthen core muscles, and establish good posture habits for improved health and confidence.
- Real-time posture feedback
- Personalized daily goals
- Posture training tutorial
- Progress tracking and stats
- Core muscle strengthening
- Posture awareness development
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**This app works with the UPRIGHT posture trainer. Stand tall, strengthen your core, and breathe better with UPRIGHT. Wish someone would give you a heads up when you’re slouching and remind you to stand up straight? Enter UPRIGHT. The UPRIGHT GO is a small personal posture trainer that is worn discreetly on your upper back and provides you with immediate posture feedback. When you slouch, your UPRIGHT GO vibrates gently to remind you to return to your upright position. Coupled with the app that provides daily training and personalized goals, the UPRIGHT GO helps you build posture awareness, strengthen your core muscles, and create good long-term posture habits for better health and confidence. Here’s what you’ll find in the app: - A step-by-step tutorial to help you get started with posture training - Your own avatar, which shows your posture in real-time and helps you develop your posture awareness - Personalized performance-based daily goals - A profile and stats screen to help you track your progress and keep improving
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: UPRIGHT at free against Function Health's subscription. UPRIGHT also leads on device support (3 vs 1). Function Health's advantage is review sentiment (62% vs 26%) and update cadence (weekly vs every 5 weeks). On price, ads, in-app purchases and iOS requirement 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.
Function Health holds the better App Store score, 4.9 against 4.6. That said, the two scores are not equally well evidenced: Function Health has 25K ratings behind it against 3.9K, so its average is the more settled of the two. Written reviews point the same way: 26% of UPRIGHT's written reviews are positive against 62% of Function Health's.
UPRIGHT ships an update every 5 weeks, Function Health weekly. The most recent releases landed on October 13, 2026 and October 15, 2026 respectively.
| Parameter | UPRIGHT | Function Health |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (3.9K ratings) | 4.9 (25K ratings) — better |
| Positive reviews | 25.6% of reviews | 62.0% of reviews — better |
| Number of ratings | 3.9K | 25K — better |
| Update frequency | Every 5 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Subscription |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 16.4 |
| Further details — not scored | ||
| Size | 90 MB | 202 MB |
| Age rating | 4+ | 17+ |
| Developer | Upright Technologies Ltd | Function Health |
Customer experience
UPRIGHT
Function Health
User reviews
UPRIGHT
From 3.9K App Store ratingsWhat we love
- 👍 Easy to use
- 🚀 Effective in improving posture
- 🚀 Helpful real-time feedback
- 🚀 Intuitive app and device setup
Room to improve
- 🐛 Connectivity issues with the app
- 🔋 High battery drain
- 🐛 Syncing and data tracking issues
- 🐛 Buggy app and software updates
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
UPRIGHT
Reported bugs
3 issues- App freezing and crashing
- Forced firmware updates causing device issues
- Inconsistent device performance and vibration detection
Requested features
3 requests- Apple Watch app integration
- Customizable goals and settings
- Improved data visualization and tracking
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
UPRIGHT
No in-app purchases
Function Health
No in-app purchases








