FullStory vs Fathom: Analytics Comparison (2026)
An independent side-by-side comparison of FullStory and Fathom for analytics buyers — pricing, features, integrations, and how often each is cited by major AI engines.
AI Citation Scorecard
How often each is cited by major AI engines when buyers ask analytics questions. Last 90 days across ChatGPT, Perplexity, Gemini, Claude, and Copilot.
Too early to call — probes still building data.
ChatGPT
FullStory
Tracking…
No data yet
Fathom
22 / 133 probes
17%
AveragePerplexity
FullStory
Tracking…
No data yet
Fathom
44 / 132 probes
33%
GoodGemini
FullStory
Tracking…
No data yet
Fathom
44 / 132 probes
33%
GoodClaude
FullStory
Tracking…
No data yet
Fathom
24 / 133 probes
18%
AverageCopilot
FullStory
Tracking…
No data yet
Fathom
284 / 470 probes
60%
ExcellentScale:NoneLowFairStrongExcellent
Probes run hourly; each (engine × query) combo retests every ~3 days.
Pricing
Key Features
FullStory
- ✓30,000 monthly sessions
- ✓12 months of analytics retention
- ✓Session Replay
- ✓Basic analytics
- ✓Debugging tools
- ✓Core capabilities for 10 users
Fathom
- ✓Up to 50 sites included
- ✓Ecommerce/event tracking included
- ✓Easy integration with all CMSs/frameworks
- ✓API access
- ✓Forever data retention
- ✓100% data ownership
- ✓No cookie banners required
- ✓Unlimited email reports
When to choose FullStory
Choose FullStory if your team prioritizes its strengths over Fathom's. Full guidance populates as FullStory's feature data is indexed.
When to choose Fathom
Choose Fathom if your team prioritizes its strengths over FullStory's. Full guidance populates as Fathom's feature data is indexed.