PostHog
Analytics & DataAll-in-one product analytics with event tracking, session replay, feature flags, A/B testing, and surveys — open-source with a generous free tier.
PostHog is an open-source product analytics platform that consolidates product analytics, session replay, feature flags, A/B testing, user surveys, and heatmaps into a single platform with autocapture that automatically tracks events without manual instrumentation. Its key differentiators are flexible deployment (cloud or self-hosted for complete data control), transparent usage-based pricing with no per-seat fees, and a generous free tier (1 million events, 5,000 session replays monthly) that 98% of customers never exceed. Developer-friendly with extensive SDK support and a built-in SQL editor, PostHog is ideal for engineering-led teams, though non-technical stakeholders may face a learning curve.
Best for
Engineering-led teams and startups who want an affordable, all-in-one product analytics platform with complete data ownership and don't mind a developer-centric interface.
Last updated: February 23, 2026
21.5/50
Overall Score
API Quality
8/10
GTM Relevance
13.5/20
PricingFreemium
Complexityhard
Learningmedium
Visit posthog.com →API Analysis
REST API
✓
Available
Webhooks
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GraphQL
—
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OAuth
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salesforcehubspotsegmentstripezapierslack
Pricing
freemiumFree Tier
Free up to 1M events/mo, then pay-per-event pricing
Strengths & Weaknesses
Strengths
Usage-based pricing with no per-seat fees—unlimited team members and typically 60-80% cheaper than Amplitude or Mixpanel at scale
Generous free tier (1M events, 5K replays monthly) allows most startups to use it indefinitely without paying
All-in-one platform eliminates data silos by combining analytics, session replay, feature flags, A/B testing, and surveys in one tool
Open-source with self-hosting option provides complete data ownership and transparency, ideal for regulated industries
Autocapture functionality automatically tracks events without extensive manual instrumentation, drastically reducing setup time
Weaknesses
Developer-centric interface has a learning curve for non-technical product managers and marketers who may need to wait for engineering support
Self-hosting requires DevOps expertise and ongoing server maintenance, adding operational overhead
Usage-based pricing can become expensive at high scale—session replay costs particularly add up with millions of recordings
More focused on product/engineering teams than marketing analytics, lacking some attribution features found in marketing-specific tools
Alternatives
Reviews
Links
FAQ
What is PostHog?
PostHog is an open-source product analytics platform that consolidates product analytics, session replay, feature flags, A/B testing, user surveys, and heatmaps into a single platform with autocapture that automatically tracks events without manual instrumentation. Its key differentiators are flexible deployment (cloud or self-hosted for complete data control), transparent usage-based pricing with no per-seat fees, and a generous free tier (1 million events, 5,000 session replays monthly) that 98% of customers never exceed. Developer-friendly with extensive SDK support and a built-in SQL editor, PostHog is ideal for engineering-led teams, though non-technical stakeholders may face a learning curve.
Is PostHog free?
Yes, PostHog offers a free tier. Free up to 1M events/mo, then pay-per-event pricing
What are PostHog alternatives?
Popular alternatives to PostHog include Amplitude, Mixpanel, Heap, LogRocket, FullStory, Matomo. Compare features, API quality, and pricing on GTM Tools.
Does PostHog have an API?
Yes, PostHog provides a REST API. API quality is rated GOOD. Documentation: https://posthog.com/docs/api.
Who is PostHog best for?
Engineering-led teams and startups who want an affordable, all-in-one product analytics platform with complete data ownership and don't mind a developer-centric interface.