FullStory
Segment
| Feature | FullStory | Segment |
|---|---|---|
| Pricing | Free only | Free / from $120/mo |
| Free Plan | ✓ Yes | ✓ Yes |
| Rating | 4.4 / 5 | 4.3 / 5 |
| Best For | product-teams, ux-designers, enterprise-apps, conversion-optimization | product-teams, data-teams, growth-companies, multi-tool-stacks |
| Founded | 2014 | 2011 |
| Session Replay | ✓ | ✗ |
| Heatmaps | ✓ | ✗ |
| Product Analytics | ✓ | ✗ |
| Error Tracking | ✓ | ✗ |
| Frustration Signals | ✓ | ✗ |
| User Journeys | ✓ | ✗ |
| Data Export | ✓ | ✗ |
| Data Collection | ✗ | ✓ |
| Customer Profiles | ✗ | ✓ |
| Destination Routing | ✗ | ✓ |
| Identity Resolution | ✗ | ✓ |
| Privacy Controls | ✗ | ✓ |
| Protocols | ✗ | ✓ |
| Functions | ✗ | ✓ |
✓ FullStory Pros
- High-fidelity session replay with DOM rendering
- AI-powered insights surface frustration signals
- Combines qualitative and quantitative analytics
- Privacy-first with PII exclusion controls
✗ FullStory Cons
- Expensive for high-traffic sites
- Free plan limited to 1,000 sessions/month
- Can slow page performance with full recording
✓ Segment Pros
- Single API to collect data sent to 400+ destinations
- Eliminates data silos with unified customer profiles
- Free plan with 1,000 visitors/month
- Strong data governance and privacy controls
✗ Segment Cons
- Expensive at scale (pricing jumps significantly)
- Implementation complexity for large organizations
- Some destinations have data lag
The Verdict
FullStory is built for product teams and ux designers, with a focus on session-replay and heatmaps. Segment targets product teams and data teams and leads with data-collection and customer-profiles.
FullStory uses custom enterprise pricing, while Segment starts at $120/mo — a tangible advantage for teams with a fixed budget.
Both offer free plans, so you can test each with your real workflow before committing to a subscription.
Both tools are a solid fit for product teams — in those cases, the decision often comes down to workflow style and how your team prefers to organize work.
This is a genuinely close comparison. If you can, sign up for both free trials (where available) and run a one-week test with your actual team tasks before deciding.