Comparison

Function Health vs MoldAI

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

MoldAI

Scan your home for mold using your camera. This AI-powered tool analyzes images to identify mold presence, type, and potential severity. Track your findings over time in a personal dashboard to stay proactive about your living environment.

Highlights
  • AI-powered mold scanning
  • Detailed mold reports
  • Type and severity likelihood
  • Personal scan dashboard
  • Proactive monitoring
  • Secure on-device storage
Features
Read full description

HOW TO USE MOLD AI: After onboarding, use your camera to scan areas where you suspect mold. Our AI instantly analyzes the image and provides a detailed report on mold presence, type likelihood, and potential severity. View your results in your personal dashboard, where scans are stored and organized over time. Stay proactive by regularly scanning and tracking changes to catch mold issues early. MoldAI is your smart companion for detecting and monitoring mold. From quick scans to in-depth analysis, MoldAI helps you stay informed about your environment—simply, accurately, and privately. All your data is stored securely on your device. NOTE: MoldAI does not provide medical advice or professional remediation recommendations. For serious health concerns or large-scale infestations, please consult a licensed professional. ** All features displayed require a monthly or weekly subscription ** Privacy Policy: https://moldai-website.vercel.app/privacy Terms of Service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Function Health4 screens
MoldAI4 screens

Verdict

The call

The clearest difference is in-app purchases: Function Health at none against MoldAI's 3. Function Health also leads on review sentiment (62% vs 33%) and update cadence (weekly vs every 6 weeks). On price, ads, monetization model and device support 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. MoldAI sells 3 in-app purchases, starting at $9.99 per 7 days. 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: Function Health has 25K ratings behind it against 16, so its average is the more settled of the two. Written reviews point the same way: 62% of Function Health's written reviews are positive against 33% of MoldAI's.

UpkeepUpdate frequency

Function Health ships an update weekly, MoldAI every 6 weeks. The most recent releases landed on October 23, 2026 and October 9, 2026 respectively.

Scorecard6 real differences · 5 level
Function Health versus MoldAI: the parameters behind the verdict, then further details
ParameterFunction HealthMoldAI
PriceFreeFree
Rating4.9 (25K ratings) — better4.6 (16 ratings)
Positive reviews61.8% of reviews — better33.3% of reviews
Number of ratings25K — better16
Update frequencyWeekly — betterEvery 6 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationSubscriptionSubscription
Best chart rank#208 — better—
DevicesiPhoneiPhone, iPod — better
Requires iOS16.415.0 — better
Further details — not scored
Size203 MB40 MB
Age rating17+4+
DeveloperFunction HealthZirconia Labs LLC

Customer experience

Function Health

All ratings25,022 ratings
Positive99.0%
Neutral0.4%
Negative0.6%
Written reviews348 reviews
Positive61.8%
Neutral5.5%
Negative32.8%

MoldAI

All ratings16 ratings
Positive87.5%
Neutral0.0%
Negative12.5%
Written reviews3 reviews
Positive33.3%
Neutral0.0%
Negative66.7%

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

MoldAI

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Function Health

No in-app purchases

3 purchases

MoldAI

Subscriptions3
  • MoldAI Premium Weekly$9.997 Days
  • MoldAI Premium Weekly3 Days trial$9.997 Days
  • MoldAI Premium Annual$19.991 Year

Questions

Is Function Health free?
Function Health is free to download, with no in-app purchases.
Is MoldAI free?
MoldAI is free to download, with in-app purchases available.
Which has better reviews, Function Health or MoldAI?
Function Health is rated higher. Function Health averages 4.9 out of 5 from 25K ratings, while MoldAI averages 4.6 from 16 ratings.
Do Function Health or MoldAI have ads?
Neither Function Health nor MoldAI shows ads.
Which is updated more often, Function Health or MoldAI?
Function Health ships an update weekly, and MoldAI every 6 weeks. Most recently, Function Health was updated on October 23, 2026 and MoldAI on October 9, 2026.

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