Justt vs Sardine
Justt vs Sardine, compared side by side on 16 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: Justt is on 62/100 and Sardine on 71/100.
Where each one leads
Justt
- funding raised: $70.0M against $25.0M
Sardine
- our overall score: 71/100 against 62/100
- LinkedIn following: 53,578 against 18,887
At a glance
| Measure | Justt | Sardine |
|---|---|---|
| What it is | Justt helps merchants fight and win chargeback disputes using AI and industry expertise. | AI-powered risk platform for fraud prevention, compliance, and credit underwriting. |
| Category | Fintech, Credit, Chargebacks, Payments | Fintech, Payments, Fraud Detection, Compliance |
| Sells toBusiness model | B2B | B2B |
| Offering | Software | Platform |
| Founded | 2019 | 2020 |
| Headquarters | Tel Aviv, Israel | San Francisco, United States |
| Status | Active | Active |
Size, funding and growth
| Measure | Justt | Sardine |
|---|---|---|
| Employees | 375 | 331 |
| Headcount growthLast 12 months | +27.4% | Not published |
| Total funding | $70.0M | $25.0M |
| Latest round | Series B | Series C Extension |
| Valuation | Not published | $660M |
| LinkedIn followers | 18,887 | 53,578 |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Justt | Sardine |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 62/100 | 71/100 |
| Traction | 59/100 | Not published |
| Team | 70/100 | Not published |
| Community | 15/100 | Not published |
| Search visibility | 29/100 | Not published |
| Quality | 68/100 | Not published |
| Agent readinessHow well an AI agent can read and act on the site | D (48/100) | D (44/100) |
| Domain ratingLink authority, 0-100 | 61/100 | 67/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Justt | Sardine |
|---|---|---|
| Hosting | Not detected | Vercel |
| CDN | Cloudflare | Vercel |
| Frameworks | Jquery | Next.js, Tailwind CSS |
| Analytics | Not detected | Google Tag Manager |
| Support stack | HubSpot | Not detected |
Justt vs Sardine: common questions
Which is better, Justt or Sardine?
On our 0-100 score Sardine rates higher (71/100 against 62/100). 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 16 data points above: read the rows that match what you are buying for.
How do Justt and Sardine compare on the numbers?
Justt leads on funding raised ($70.0M against $25.0M). Sardine leads on our overall score (71/100 against 62/100), LinkedIn following (53,578 against 18,887).
Read the full Justt review and pricing or the Sardine review and pricing. You can also browse other Justt alternatives we track.

