Lumar vs Similarweb
Which one do AI engines recommend, and how do they differ on price, fit and features?
The short answer
Similarweb is the stronger AI pick in SEO Tools: it has a visibility score of 2.4 versus 0.8 for Lumar.
Choose Lumar if…
No clear advantage in the published data.
Choose Similarweb if…
- You want the brand AI engines rank higher (2.4 vs 0.8)
- You need ISO/IEC 27001:2022 or SOC 3 coverage
- You prefer a larger, established vendor (1,001–5,000 employees)
- competitive web traffic analysis and market intelligence
AI visibility side by side
Latest weekly run · Nov 2
| Metric | Lumar | Similarweb |
|---|---|---|
| Visibility score | 0.8% | 2.4% |
| Change vs last week | New | New |
| Rank in SEO Tools | #36 | #22 |
| Share of voice | 0.4% | 0.9% |
| Mentions this run | 2 | 5 |
| Positive in AI answers | 0% | 0% |
The stronger value in each row is marked with a ✓.
Visibility score trend
Weekly runs over the last 60 days
Lumar 0pp · Similarweb 0pp over 0 weekly runs.
Engine by engine
Similarweb leads on 2 of 3 engines
Head to head in AI answers
0 engine answers name both brands
Features, pricing & fit
| Dimension | Lumar | Similarweb |
|---|---|---|
| Pricing model | — | Flat tiers |
| Entry price | — | Contact sales |
| Free plan | — | No |
| Deployment | Cloud-based | — |
| Compliance | SOC 2 Type 2 | ISO/IEC 27001:2022, SOC 2 Type 2, SOC 3 |
| Support | Dedicated SEO and GEO professional services team with strategy help and regular crawl reviews, Customer success team | Email support (support@similarweb.com), Dedicated enterprise support, Sales chat |
| Founded | 2010 | 2009 |
| Headquarters | New York, NY, United States | New York, NY, United States |
| Employees | 51–200 | 1,001–5,000 |
| Funding | Series B | IPO (NYSE) · $240M raised |
| Best for | Enterprise SEO, web accessibility and digital marketing teams running large, complex websites | Marketers, researchers, and SEO and PPC teams |
Plans side by side
Lumar
Pricing not available.
Pros and cons
Themes from the AI answers that mention each brand
Lumar
Profile in progress.
Similarweb
- competitive web traffic analysis and market intelligence
- cross-domain traffic sourcing and market share benchmarking
- competitor benchmarking and market research
- free trial and limited free version
- not suited to precise first-party conversion measurement
- ranked behind Google Analytics and Amplitude in one comparison
Data collected ·ChatGPT, Perplexity, Google AI Mode·coverage 100%·next run
Cite as: SlateIndex, “Lumar vs Similarweb”, https://slateindex.ai/compare/lumar-vs-similarweb, data of Nov 2, 2026. Licence: CC BY 4.0.