FullStory vs Semrush: Complete Comparison 2026
An in-depth comparison of features, pricing, and user experience to help you make the right choice.
FullStory
8.2(1,180 reviews)
Digital experience analytics platform combining session replay, heatmaps, and error tracking for product teams.

Semrush
8.9(4,100 reviews)
All-in-one SEO and digital marketing platform with 25.6 billion keywords and competitive intelligence.
Quick Comparison
| Aspect | FullStory | Semrush |
|---|---|---|
| Best For | Product teams at SaaS companies debugging complex user flows | SEO managers tracking rankings and technical health |
| Pricing Model | Contact Sales | Subscription |
| Starting Price | Contact Sales | $129.95/mo |
| Deployment | cloud | cloud |
| Platforms | WEB | WEB, IOS, ANDROID |
| Rating | 8.2/10 | 8.9/10 |
Pros & Cons
FullStory
Pros
- Auto-capture means no manual event tagging required, saving engineering time
- Omnisearch lets you find specific sessions using CSS selectors or natural language
- Frustration signals automatically detect rage clicks, dead clicks, and thrashed cursors
- Error tracking ties JavaScript exceptions directly to session replays for faster debugging
- Retroactive analysis lets you query past data without pre-defining events
Cons
- No published pricing and no free tier makes it inaccessible for small teams
- Plans typically start at $300+/mo which is steep for low-traffic sites
- Learning curve is significant for teams new to digital experience analytics
- Data storage costs scale with traffic volume and can spike unexpectedly
- Mobile app analytics support is less mature than web analytics
Semrush
Pros
- 25.6 billion keyword database is the largest available
- Covers SEO, PPC, content, social, and competitive research in one tool
- Site audit catches technical SEO issues quickly
- Competitive intelligence data is thorough and actionable
- Regular updates add new features without price increases
Cons
- One domain per license - additional domains cost extra
- Learning curve is steep for non-technical marketers
- Data can be overwhelming without a clear strategy
- Business plan needed for the most valuable features
- Some data slightly lags behind Google for very new keywords
Pricing Comparison
| Product | Pricing Model | Starting Price |
|---|---|---|
| FullStory | contact sales | Contact Sales |
| Semrush | subscription | $129.95/mo |
Our Verdict
Choose FullStory if...
Product teams at SaaS companies debugging complex user flows
Choose Semrush if...
SEO managers tracking rankings and technical health
Still Not Sure?
Explore more alternatives or read in-depth reviews to make your decision.