FullStory vs Heap: Analytics Comparison (2026)
FullStory and Heap both offer free tiers for their analytics platforms, but they differ in data retention, session limits, and specific features. FullStory provides 12 months of analytics retention and a limit of 30,000 monthly sessions, whereas Heap offers 6 months of data history with unlimited enrichment sources.
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.
Probes run hourly; each (engine × query) combo retests every ~3 days.
Pricing
Key Features
- ✓30,000 monthly sessions
- ✓12 months of analytics retention
- ✓Session Replay
- ✓Basic analytics
- ✓Debugging tools
- ✓Core capabilities for 10 users
- ✓Core analytics charts
- ✓Unlimited enrichment sources
- ✓6 months data history
- ✓SSO
When to choose FullStory
FullStory is a better choice when 12 months of analytics retention is crucial, and the 30,000 monthly session limit on the free plan is sufficient. It is also beneficial for users who need debugging tools and core capabilities for up to 10 users.
When to choose Heap
Heap is a better choice when unlimited enrichment sources are a priority, and 6 months of data history is adequate. It also offers SSO, which is not listed as a feature for FullStory on its free tier.