Hello Heart vs Stellar Sleep
Hello Heart vs Stellar Sleep, 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: Hello Heart is on 62/100 and Stellar Sleep on 49/100.
Where each one leads
Hello Heart
- our overall score: 62/100 against 49/100
- domain rating: 58/100 against 38/100
- funding raised: $136M against $6.1M
Stellar Sleep
- agent readiness: 58/100 against 49/100
At a glance
| Measure | Hello Heart | Stellar Sleep |
|---|---|---|
| What it is | Digital leader in preventive heart health using connected devices and AI coaching. | Digital sleep therapy platform using psychology to treat chronic insomnia. |
| Category | Healthcare, Mobile, Blood, Blood Pressure | Healthcare, Health and Wellness, Mobile, Digital Health |
| Sells toBusiness model | B2B2C | B2C |
| Offering | Software | Software |
| Founded | 2013 | 2021 |
| Headquarters | San Francisco, United States | San Francisco, United States |
| Status | Active | Active |
Size, funding and growth
| Measure | Hello Heart | Stellar Sleep |
|---|---|---|
| Employees | 660 | Not published |
| Headcount growthLast 12 months | +40.0% | Not published |
| Total funding | $136M | $6.1M |
| Latest round | Series D | Seed |
| Valuation | $55.0M | Not published |
| LinkedIn followers | 47,482 | Not published |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Hello Heart | Stellar Sleep |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 62/100 | 49/100 |
| Traction | 60/100 | 34/100 |
| Team | 70/100 | 60/100 |
| Community | 8/100 | 15/100 |
| Search visibility | 30/100 | 15/100 |
| Quality | 65/100 | 58/100 |
| Agent readinessHow well an AI agent can read and act on the site | D (49/100) | D (58/100) |
| Domain ratingLink authority, 0-100 | 58/100 | 38/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Hello Heart | Stellar Sleep |
|---|---|---|
| CDN | Cloudflare | Cloudflare |
| CMS | Webflow | Not detected |
| Frameworks | Not detected | Tailwind CSS |
| Analytics | Google Tag Manager | Not detected |
| Support stack | Zendesk | Not detected |
What users say
| Measure | Hello Heart | Stellar Sleep |
|---|---|---|
| Reddit sentimentThreads we track | 0 positive, 1 negative across 1 thread | Not published |
“Hello Heart app and mailing. Anyone else receive a flier in the mail to scan a QR code and receive a free BP machine? Got the machine in the mail, however it will only work with the registered user.”r/sherwinwilliams
Hello Heart vs Stellar Sleep: common questions
Which is better, Hello Heart or Stellar Sleep?
On our 0-100 score Hello Heart rates higher (62/100 against 49/100). 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 Hello Heart and Stellar Sleep compare on the numbers?
Hello Heart leads on our overall score (62/100 against 49/100), domain rating (58/100 against 38/100), funding raised ($136M against $6.1M). Stellar Sleep leads on agent readiness (58/100 against 49/100).
What do real users say about Hello Heart and Stellar Sleep?
Hello Heart: 0 positive and 1 negative mentions across 1 Reddit threads we track, mostly in r/sherwinwilliams.
Read the full Hello Heart review and pricing or the Stellar Sleep review and pricing. You can also browse other Hello Heart alternatives we track.