Kluster vs Retrofit
Kluster vs Retrofit, 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: Kluster is on 55/100 and Retrofit on 62/100.
Where each one leads
Kluster
- agent readiness: 49/100 against 44/100
- domain rating: 40/100 against 13/100
- headcount: 5 against 2
Retrofit
- our overall score: 62/100 against 55/100
- funding raised: $31.2M against $10.0M
- LinkedIn following: 983 against 386
At a glance
| Measure | Kluster | Retrofit |
|---|---|---|
| What it is | kluster.ai has been acquired by MITO. kluster.ai services were sunset on June 9, 2026. | Retrofit is a secondhand marketplace using AI agents to curate and personalize trending vintage inventory based on social media and sales data. |
| Category | Agentic AI, AI Agents, Agentic Commerce, Agentic SEO | Agentic AI, AI Agent, E-commerce, Marketplace |
| Sells toBusiness model | B2B | B2C |
| Offering | Software | Marketplace |
| Founded | 2021 | 2012 |
| Headquarters | Tel Aviv, Israel | New York, United States |
| Status | Active | Active |
Size, funding and growth
| Measure | Kluster | Retrofit |
|---|---|---|
| Employees | 5 | 2 |
| Headcount growthLast 12 months | Not published | -91.5% |
| Total funding | $10.0M | $31.2M |
| Latest round | Seed | Series C |
| LinkedIn followers | 386 | 983 |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Kluster | Retrofit |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 55/100 | 62/100 |
| Traction | Not published | 57/100 |
| Team | 24/100 | 60/100 |
| Community | Not published | 8/100 |
| Search visibility | 47/100 | 34/100 |
| Quality | Not published | 68/100 |
| Agent readinessHow well an AI agent can read and act on the site | D (49/100) | D (44/100) |
| Domain ratingLink authority, 0-100 | 40/100 | 13/100 |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Kluster | Retrofit |
|---|---|---|
| Hosting | Heroku | Vercel |
| CDN | Not detected | Vercel |
| Frameworks | Next.js, Tailwind CSS | Next.js |
| Analytics | Not detected | Google Analytics 4, Google Tag Manager, Facebook Pixel |
Product and pricing
| Measure | Kluster | Retrofit |
|---|---|---|
| Key features | Not published | Personalized Vintage Finds, AI-Powered Curation, Effortless Shopping, Inventory Quality Control, Automated Listing & Presentation, User Intent Capture |
Kluster vs Retrofit: common questions
Which is better, Kluster or Retrofit?
On our 0-100 score Retrofit rates higher (62/100 against 55/100). 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 Kluster and Retrofit compare on the numbers?
Kluster leads on agent readiness (49/100 against 44/100), domain rating (40/100 against 13/100), headcount (5 against 2). Retrofit leads on our overall score (62/100 against 55/100), funding raised ($31.2M against $10.0M), LinkedIn following (983 against 386).
Read the full Kluster review and pricing or the Retrofit review and pricing. You can also browse other Kluster alternatives we track.