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Fullstory

vs

PostHog

In-depth comparison to help you make the right choice for your product analytics needs

Fullstory logo

Fullstory

Session Replay

Behavioral data platform combining high-fidelity session replay, autocapture, and AI-driven analytics to optimize digital experiences.

Pricing
Free - Custom
10,000+
PostHog logo

PostHog

Product Analytics

All-in-one open-source product analytics platform with session replay, feature flags, and A/B testing for engineers.

Pricing
Free - Usage-based
190,000+
Founded 2020

Best For

Who should use each platform

Fullstory
Product Teams
B2B SaaS
E-commerce
Marketing Teams
PostHog
Startups
B2B SaaS
Product Teams
Data Teams
Mobile Apps

Pricing Breakdown

Compare pricing options and trial availability

Fullstory
Starting Price
Free - Custom
Free tier available
No free trial
Special Offer

Free tier for individuals and small teams (up to 30k sessions/mo)

PostHog
Starting Price
Free - Usage-based
Free tier available
No free trial
Special Offer

Startup program ($50k credits), Non-profit discounts

Integrations

Available integrations for each platform

Fullstory
Jira
Slack
Salesforce
Segment
Google Analytics
Snowflake
BigQuery
Tealium
Qualtrics
Optimizely
PostHog
Slack
Stripe
HubSpot
Salesforce
Sentry
Segment
Zapier
RudderStack
Hightouch
BigQuery

Strengths

What users love about each platform

Fullstory

  • • Fullcapture technology records all user interactions without manual tagging
  • • Generous free tier with 30,000 monthly sessions
  • • StoryAI automatically surfaces friction points and summarizes sessions
  • • Privacy-first architecture with 'Private by Default' settings
  • • Combines quantitative metrics with qualitative visual context

PostHog

  • • Open-source and self-hostable option for complete data control
  • • All-in-one platform combining analytics, replays, and feature flags
  • • Generous free tier (1M events/month) that resets monthly
  • • Direct SQL access (HogQL) for advanced data querying
  • • Autocapture feature tracks all events without manual instrumentation

Limitations

What could be better with each platform

Fullstory

  • • Advanced analysis features locked behind Enterprise plans
  • • Session storage limits based on retention period settings
  • • Requires careful configuration to ensure PII is properly masked

PostHog

  • • Steep learning curve for non-technical users
  • • Self-hosting requires significant engineering resources to maintain
  • • Can become expensive at high volume if not optimized
  • • Visualization options are less flexible than dedicated BI tools

Ready to explore Fullstory?

See detailed features, pricing, and more

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Ready to explore PostHog?

See detailed features, pricing, and more

All PostHog comparisons