OpenPhone vs Phonemachine
OpenPhone vs Phonemachine, compared side by side on 10 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: OpenPhone is on 57/100 and Phonemachine on 9/100.
Where each one leads
OpenPhone
- our overall score: 57/100 against 9/100
- domain rating: 75/100 against 28/100
Phonemachine
- agent readiness: 50/100 against 30/100
At a glance
| Measure | OpenPhone | Phonemachine |
|---|---|---|
| What it is | AI-powered collaborative phone system for startups and small businesses. | The AI receptionist for small businesses, answering calls 24/7, qualifying leads, and booking appointments. |
| Category | Voice AI, Conversational AI, Contact Center AI, Phone Agent | Voice AI, Conversational AI, AI Receptionist, Customer Service Automation |
| Sells toBusiness model | B2B | B2B |
| Offering | Software | Software |
| Founded | 2018 | Not published |
| Headquarters | San Francisco, United States | Not published |
| Status | Active | Active |
Size, funding and growth
| Measure | OpenPhone | Phonemachine |
|---|---|---|
| Employees | 59 | Not published |
| Total funding | $45.0M | Not published |
| Latest round | Series B | Not published |
| LinkedIn followers | 21,949 | Not published |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | OpenPhone | Phonemachine |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 57/100 | 9/100 |
| Traction | 56/100 | Not published |
| Team | 30/100 | Not published |
| Search visibility | 29/100 | 10/100 |
| Quality | 68/100 | Not published |
| Agent readinessHow well an AI agent can read and act on the site | F (30/100) | D (50/100) |
| Domain ratingLink authority, 0-100 | 75/100 | 28/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | OpenPhone | Phonemachine |
|---|---|---|
| Hosting | Not detected | Vercel |
| CDN | Cloudflare | Vercel |
| Frameworks | Not detected | Next.js |
| Analytics | Not detected | Google Analytics 4 |
Product and pricing
| Measure | OpenPhone | Phonemachine |
|---|---|---|
| Key features | Sona AI Agent, AI Call Summaries & Transcripts, Shared Phone Numbers, Lightweight CRM, OpenPhone API, Customizable Call Flow Builder | Not published |
OpenPhone vs Phonemachine: common questions
Which is better, OpenPhone or Phonemachine?
On our 0-100 score OpenPhone rates higher (57/100 against 9/100). 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 10 data points above: read the rows that match what you are buying for.
How do OpenPhone and Phonemachine compare on the numbers?
OpenPhone leads on our overall score (57/100 against 9/100), domain rating (75/100 against 28/100). Phonemachine leads on agent readiness (50/100 against 30/100).
Read the full OpenPhone review and pricing or the Phonemachine review and pricing. You can also browse other OpenPhone alternatives we track.

