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Head-to-head

Fullstory vs PostHog

Two leading analytics tools, compared on pricing, features, and editorial fit. Updated for 2026.

Fullstory logo
Fullstory

Digital experience analytics and session replay for product and marketing teams

Custom pricing
Visit Fullstory
PostHog logo
PostHog

The product OS for developers.

Free
Visit PostHog

At a glance

 FullstoryPostHog
TaglineDigital experience analytics and session replay for product and marketing teamsThe product OS for developers.
Pricing modelEnterpriseFreemium
Starts atCustomFree
Founded—2020
AI-native
CategoriesAnalytics, Customer Data PlatformsAnalytics
Vendor claimed

Quick take

Pick Fullstory if you need digital experience analytics and session replay for product and marketing teams. Pick PostHog if you need the product os for developers.

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Frequently asked

Is Fullstory better than PostHog?
It depends on your use case. Fullstory is digital experience analytics and session replay for product and marketing teams, while PostHog is the product os for developers. See the comparison above for which fits your team.
What's the price difference between Fullstory and PostHog?
Fullstory uses custom pricing. PostHog is free.
Can I migrate from Fullstory to PostHog?
Most tools in this category support data import via CSV. For complex migrations, both vendors offer onboarding assistance on higher-tier plans.