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.
FullStory leads overall — 57% cited vs Fathom 18% across 1000 probes.
ChatGPT
FullStoryLeads
48 / 86 probes
56%
ExcellentFathom
15 / 86 probes
17%
AveragePerplexity
FullStoryLeads
35 / 86 probes
41%
GoodFathom
25 / 86 probes
29%
AverageGemini
FullStoryLeads
37 / 87 probes
43%
GoodFathom
24 / 87 probes
28%
AverageClaude
FullStoryLeads
41 / 86 probes
48%
GoodFathom
14 / 86 probes
16%
AverageCopilot
FullStoryLeads
122 / 155 probes
79%
ExcellentFathom
12 / 155 probes
8%
Below averageScale: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.