Pay3 vs Simplex
Pay3 vs Simplex, 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: Pay3 is on 33/100 and Simplex on 57/100.
Where each one leads
Pay3
Leads on none of the measures we hold for both companies.
Simplex
- our overall score: 57/100 against 33/100
- agent readiness: 42/100 against 36/100
- domain rating: 77/100 against 3/100
- headcount: 333 against 18
- LinkedIn following: 11,522 against 3,496
At a glance
| Measure | Pay3 | Simplex |
|---|---|---|
| What it is | Enterprise-focused stablecoin payments platform enabling AI agents to autonomously execute financial transactions. | Simplex provides a secure, global onramp for individuals and businesses to instantly buy cryptocurrency with fiat. |
| Category | Fintech, Payments, Digital Payments, Embedded Finance | Fintech, Fraud Prevention, Transactions, E-commerce |
| Sells toBusiness model | B2B | B2B |
| Offering | Platform | Software |
| Founded | 2021 | 2014 |
| Headquarters | San Francisco, United States | Tel Aviv, Israel |
| Status | Active | Active |
Size, funding and growth
| Measure | Pay3 | Simplex |
|---|---|---|
| Employees | 18 | 333 |
| Headcount growthLast 12 months | Not published | +50.5% |
| Total funding | Not published | $8.4M |
| Latest round | Not published | Series A |
| LinkedIn followers | 3,496 | 11,522 |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Pay3 | Simplex |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 33/100 | 57/100 |
| Traction | 13/100 | 55/100 |
| Team | 60/100 | 70/100 |
| Search visibility | 27/100 | 31/100 |
| Quality | Not published | 58/100 |
| Agent readinessHow well an AI agent can read and act on the site | F (36/100) | D (42/100) |
| Domain ratingLink authority, 0-100 | 3/100 | 77/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Pay3 | Simplex |
|---|---|---|
| Hosting | Self Managed | AWS |
| CDN | Not detected | Cloudflare |
| Frameworks | Tailwind CSS | Jquery, Bootstrap |
| Analytics | Google Tag Manager | Google Analytics 4, Google Tag Manager, Segment, Plausible |
| Support stack | Not detected | Zendesk, HubSpot |
| Agentic commerceMachine-readable checkout or agent payment rails | Crypto Payments | Not detected |
Pay3 vs Simplex: common questions
Which is better, Pay3 or Simplex?
On our 0-100 score Simplex rates higher (57/100 against 33/100). 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 Pay3 and Simplex compare on the numbers?
Simplex leads on our overall score (57/100 against 33/100), agent readiness (42/100 against 36/100), domain rating (77/100 against 3/100), headcount (333 against 18), LinkedIn following (11,522 against 3,496).
Read the full Pay3 review and pricing or the Simplex review and pricing. You can also browse other Pay3 alternatives we track.

