According to AlphaMoat, in 2026-09 the AI app Function Health saw 14,142 downloads over the last 30 days — ranked #1,346 of 2,900 AI apps, and #34 of 107 in Industry Services; its top market is United States (100.0% of downloads).
What is Function Health
Function membership helps you take control of your health with 160+ lab tests each year, personalized Protocols and a Private AI Chat, built with top doctors and backed by your own data. Lab and medical services come from independent third parties.
- 01160+ lab tests a year covering heart, hormones, thyroid, liver, kidneys, toxins, nutrients and immunity
- 02home or office blood draws completed in under 20 minutes
- 03optional advanced MRI and CT scans
- 04Private AI Chat for questions about results
- 05connection of Apple Health and other wearables
- 06upload of past lab results and medical records
Free to download from the App Store. Membership costs $365/year. Optional advanced MRI and CT scans start at $365 and are separately purchasable On-Demand tests; lab and medical services are provided by independent third parties.
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Function Health pairs annual lab testing and imaging options with a private AI chat for members tracking their health.
+ CompareData month: 2026-09 · Downloads and in-app purchase revenue are third-party estimates (trailing 30-day window), aggregated monthly. Revenue covers App Store and Google Play in-app purchases (including subscriptions) only — excluding Android app stores in mainland China and other payment channels such as web subscriptions. See methodology.