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PostHog vs Segment

Open-source analytics with session replay, but does not offer the extensive integration network of Segment

Which to pick

Pick PostHog if you want…

  • Unified product analytics with AI assistance
  • Self-hosted product analytics
  • Open-source code (PostHog/posthog on GitHub)
  • Integrations with Stripe, GitHub or Google Ads (on PostHog's list, not Segment's)

Pick Segment if you want…

  • Unified customer data pipelines
  • Integrations with Data warehouses (on Segment's list, not PostHog's)

Side by side

What it is
PostHog:PostHog is an all-in-one product analytics platform with session replay, error tracking, feature flags and AI-driven insights.
Segment:Twilio Segment is a customer data platform that collects, unifies, and routes event data to 750+ tools.
Best for
PostHog:Unified product analytics with AI assistance
Segment:Unified customer data pipelines
Who it’s for
PostHog:Product teams and engineers who need analytics, monitoring and automated issue resolution.
Segment:Product, marketing, and engineering teams that need unified customer data.
Pricing
PostHog:Freemium
Segment:Freemium
Plans
PostHog:Free $0 · Pay-as-you-go $0 per month · Platform packages $0
Segment:—
Open source
PostHog:Yes, 40,071 GitHub stars
Segment:—
Works with
PostHog:Stripe, GitHub, Google Ads, Postgres, HubSpot, Zendesk, Linear, Slack
Segment:Data warehouses

PostHog features

  • Product Analytics. Capture, store and query events with a free tier of 1 M events per month.
  • Session Replay. Record user sessions (5 K free recordings) and surface dead clicks or crashes.
  • Error Tracking. Collect exceptions and stack traces, grouped into actionable issues.
  • Feature Flags & Experiments. Toggle features and run A/B tests with 1 M free flag requests per month.
  • AI Observability. Ask natural-language questions; AI generates diagnostics and pull-request suggestions.
  • Managed Data Warehouse. Store raw events, rows and logs; query via SQL or BI tools.
  • Workflows & Inbox. Automated agents create PRs, prioritize findings and route tickets to GitHub, Zendesk, etc.
  • Integrations. Ingest data from 120+ sources like Stripe, Postgres, HubSpot, Google Ads and more.

Segment features

  • Customer Data Pipeline. Collect first-party events and send them to 550+ destinations or a data warehouse.
  • Customer Data Platform. Create identity-resolved profiles, AI audiences, and real-time journeys.
  • 750+ Integrations. Connect to over 750 apps, destinations, and pre-built sources.
  • Data Governance. Protocols enforce data quality and compliance at scale.
  • AI Recommendations. Add-on AI-powered product recommendations and predictive audiences.
  • Public API & Developer Tools. Manage sources, destinations, and workspaces programmatically.

PostHog vs Segment FAQ

Is PostHog or Segment free?+

PostHog has a free plan and paid plans. Segment has a free plan and paid plans.

Is PostHog or Segment open source?+

PostHog is open source (PostHog/posthog on GitHub). DevHunt has no public source repository on record for Segment.

Do PostHog and Segment integrate with the same tools?+

Their integration lists don't overlap: PostHog lists Stripe, GitHub, Google Ads, Postgres and 4 more; Segment lists Data warehouses.

On DevHunt

Based on each tool's website and DevHunt data. Details may change; check the official sites.