PostHog vs FullStory: Analytics Comparison (2026)

An independent side-by-side comparison of PostHog and FullStory 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
PostHog
29 / 101 probes
29%
Average
FullStory
Tracking…
No data yet
Perplexity
PostHog
59 / 102 probes
58%
Excellent
FullStory
Tracking…
No data yet
Gemini
PostHog
58 / 101 probes
57%
Excellent
FullStory
Tracking…
No data yet
Claude
PostHog
27 / 101 probes
27%
Average
FullStory
Tracking…
No data yet
Copilot
PostHog
83 / 595 probes
14%
Below average
FullStory
Tracking…
No data yet
Scale:NoneLowFairStrongExcellent

Probes run hourly; each (engine × query) combo retests every ~3 days.

Pricing

PostHog
Starting price
—
Free tier
Yes
posthog.com ↗
FullStory
Starting price
—
Free tier
Yes
fullstory.com ↗

Key Features

PostHog
  • ✓Product Analytics: 1M events/mo free
  • ✓Session Replay: 5K recordings/mo free
  • ✓Feature Flags: 1M requests/mo free
  • ✓Managed Warehouse: 1M rows/mo free
  • ✓Usage-based pricing
  • ✓No sales calls required
  • ✓Generous free tiers
  • ✓Single source of truth for customers
FullStory
  • ✓30,000 monthly sessions
  • ✓12 months of analytics retention
  • ✓Session Replay
  • ✓Basic analytics
  • ✓Debugging tools
  • ✓Core capabilities for 10 users

When to choose PostHog

Choose PostHog if your team prioritizes its strengths over FullStory's. Full guidance populates as PostHog's feature data is indexed.

When to choose FullStory

Choose FullStory if your team prioritizes its strengths over PostHog's. Full guidance populates as FullStory's feature data is indexed.

AI visibility profiles

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PostHog

posthog.com

FullStory

fullstory.com

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We ask the buyer questions in this market across ChatGPT, Claude, Gemini, Perplexity and Copilot, and show you who gets named.

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