Calibre vs Lark
Calibre vs Lark, compared side by side on 18 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: Calibre is on 44/100 and Lark on 63/100.
Where each one leads
Calibre
Leads on none of the measures we hold for both companies.
Lark
- our overall score: 63/100 against 44/100
- agent readiness: 48/100 against 22/100
- funding raised: $187M against $3.3M
At a glance
| Measure | Calibre | Lark |
|---|---|---|
| What it is | A proactive health partner for life that deeply understands your full picture, tells you what's actually driving your health, and guides you as your health evolves. | AI-powered digital health coaching for chronic condition management. |
| Category | HealthTech, Artificial Intelligence, Personalized Health, Wellness | HealthTech, MedTech, Digital Health, Chronic Disease Management |
| Sells toBusiness model | B2C | B2B |
| Offering | Services | Software | platform |
| Founded | 2025 | 2011 |
| Headquarters | London, United Kingdom | Mountain View, United States |
| Status | Active | Active |
Size, funding and growth
| Measure | Calibre | Lark |
|---|---|---|
| Employees | Not published | 139 |
| Headcount growthLast 12 months | Not published | -8.3% |
| Total funding | $3.3M | $187M |
| Latest round | Pre-seed | Series D |
| LinkedIn followers | Not published | 27,839 |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Calibre | Lark |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 44/100 | 63/100 |
| Traction | 33/100 | 60/100 |
| Team | 70/100 | 70/100 |
| Search visibility | 16/100 | 33/100 |
| Quality | 48/100 | 68/100 |
| Agent readinessHow well an AI agent can read and act on the site | F (22/100) | D (48/100) |
| Domain ratingLink authority, 0-100 | 54/100 | 58/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Calibre | Lark |
|---|---|---|
| CDN | Cloudflare | Cloudflare |
| CMS | Not detected | Webflow |
| Frameworks | Next.js, Tailwind CSS | Not detected |
| Analytics | Google Tag Manager | Google Tag Manager, Segment |
Calibre vs Lark: common questions
Which is better, Calibre or Lark?
On our 0-100 score Lark rates higher (63/100 against 44/100). 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 18 data points above: read the rows that match what you are buying for.
How do Calibre and Lark compare on the numbers?
Lark leads on our overall score (63/100 against 44/100), agent readiness (48/100 against 22/100), funding raised ($187M against $3.3M).
Read the full Calibre review and pricing or the Lark review and pricing. You can also browse other Calibre alternatives we track.