Function Health vs Lucis
Function Health vs Lucis, compared side by side on 22 data points: what each one does, how big it is, what it has raised, the tech running each site, and what users report. We score both out of 100 on traction, team and visibility: Function Health is on 55/100 and Lucis on 57/100.
Where each one leads
Function Health
- domain rating: 71/100 against 37/100
- funding raised: $298M against $32.1M
Lucis
- headcount: 33 against 7
- LinkedIn following: 13,800 against 152
At a glance
| Measure | Function Health | Lucis |
|---|---|---|
| What it is | Membership-based service offering 160+ lab tests, doctor insights, and lifetime health tracking. | Lucis transforms blood tests into actionable health insights for a healthier, longer life. |
| Category | HealthTech, Telemedicine, Longevity, Precision Medicine | HealthTech, MedTech, Longevity, Preventive Health |
| Sells toBusiness model | B2C | B2C |
| Offering | Services | Platform |
| Founded | 2021 | 2022 |
| Headquarters | Miami, United States | Berlin, Germany |
| Status | Active | Active |
Size, funding and growth
| Measure | Function Health | Lucis |
|---|---|---|
| Employees | 7 | 33 |
| Total funding | $298M | $32.1M |
| Latest round | Series B | Series A |
| Valuation | $3K | Not published |
| LinkedIn followers | 152 | 13,800 |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Function Health | Lucis |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 55/100 | 57/100 |
| Traction | 49/100 | 53/100 |
| Team | 70/100 | 70/100 |
| Community | Not published | 8/100 |
| Search visibility | 41/100 | 42/100 |
| Quality | 58/100 | 58/100 |
| Agent readinessHow well an AI agent can read and act on the site | D (45/100) | D (44/100) |
| Domain ratingLink authority, 0-100 | 71/100 | 37/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Function Health | Lucis |
|---|---|---|
| Hosting | Vercel | Vercel |
| CDN | Cloudflare | Cloudflare |
| Frameworks | Svelte, Astro | Next.js, Tailwind CSS |
| Analytics | Mixpanel | Not detected |
Product and pricing
| Measure | Function Health | Lucis |
|---|---|---|
| Key features | Comprehensive Lab Tests, Doctor Insights & Clinician Summaries, Lifetime Results Tracking, Nationwide Testing Access, Early Disease Detection | Personalized Health Scores & Biological Age, Comprehensive Blood Testing, Actionable Health Plans, Data Tracking & Insights, Accessible Preventive Care, Specialty Testing Access |
Function Health vs Lucis: common questions
Which is better, Function Health or Lucis?
On our 0-100 score Lucis rates higher (57/100 against 55/100). The score weights traction, team, visibility and profile completeness, so it reflects company strength rather than which product suits you. We compare the two on 22 data points above: read the rows that match what you are buying for.
How do Function Health and Lucis compare on the numbers?
Function Health leads on domain rating (71/100 against 37/100), funding raised ($298M against $32.1M). Lucis leads on headcount (33 against 7), LinkedIn following (13,800 against 152).
Read the full Function Health review and pricing or the Lucis review and pricing. You can also browse other Function Health alternatives we track.

