FullStoryIntelligent digital experiences. Powered by human context.
vs
SimilarwebAI-powered digital data intelligence for market, competitive and consumer insights.
Comparison · Web Analytics · weekly run Nov 2
FullStory 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 Web Analytics: it has a visibility score of 7.2 versus 4.6 for FullStory, and ranks ahead in 50% of the answers that name both.
Choose FullStory if…
- You want a free plan to start
- AI answers describe it more positively (19% vs 0% positive)
- You need SOC 2 Type II or ISO 27001 or ISO 27017 or ISO 27018 or ISO 27701 or ISO 42001 coverage
- session replay and UX friction analysis
Choose Similarweb if…
- You want the brand AI engines rank higher (7.2 vs 4.6)
- You need ISO/IEC 27001:2022 or SOC 2 Type 2 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 | FullStory | Similarweb |
|---|---|---|
| Visibility score | 4.6% | 7.2% |
| Change vs last week | New | New |
| Rank in Web Analytics | #16 | #12 |
| Share of voice | 1.8% | 2.5% |
| Mentions this run | 10 | 13 |
| Positive in AI answers | 19% | 0% |
The stronger value in each row is marked with a ✓.
Visibility score trend
Weekly runs over the last 60 days
FullStory 0pp · Similarweb 0pp over 0 weekly runs.
Engine by engine
Similarweb leads on 2 of 3 engines
ChatGPT
AI Mode
Perplexity
FullStorySimilarweb
Head to head in AI answers
2 engine answers name both brands
1FullStory ranked higher
1Similarweb ranked higher
| Prompt | Engine | FullStory | Similarweb |
|---|---|---|---|
| What are the best Web Analytics tools in 2026? | Perplexity | #13 | #11 |
| Official website of the top web analytics tool vendors | Perplexity | #8 | #14 |
Features, pricing & fit
| Dimension | FullStory | Similarweb |
|---|---|---|
| Pricing model | Flat tiers | Flat tiers |
| Entry price | Contact sales | Contact sales |
| Free plan | Yes | No |
| Compliance | SOC 2 Type II, SOC 3, ISO 27001, ISO 27017, ISO 27018, ISO 27701, ISO 42001 | ISO/IEC 27001:2022, SOC 2 Type 2, SOC 3 |
| Support | Onboarding with Fullstory specialists, Professional services: Insights+ consulting and Data+ configuration, Advantage Subscription expert guidance | Email support (support@similarweb.com), Dedicated enterprise support, Sales chat |
| Founded | 2014 | 2009 |
| Headquarters | Atlanta, GA, United States | New York, NY, United States |
| Employees | 501–1,000 | 1,001–5,000 |
| Funding | Series C (one source: $32M led by Stripes) | IPO (NYSE) · $240M raised |
| Best for | Product, UX, and growth teams | Marketers, researchers, and SEO and PPC teams |
Plans side by side
Pros and cons
Themes from the AI answers that mention each brand
FullStory
- session replay and UX friction analysis
- combines quantitative and qualitative data
- digital experience intelligence and qualitative debugging
- frequently recommended by analysts and industry lists
- useful heatmaps and session recordings
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, “FullStory vs Similarweb”, https://slateindex.ai/compare/fullstory-vs-similarweb, data of Nov 2, 2026. Licence: CC BY 4.0.