PostHog
Open-source product analytics suite with session replay, feature flags, and A/B testing
Price
Free / $0.00031 per event
Used by
85,000+ builders
Model
freemium
Best for
SaaS products
Quick Verdict — Score: 90/100
PostHog is the modern product analytics stack in one tool. The combination of analytics + session replay + feature flags + A/B testing in a single platform with a generous free tier makes it the default choice for startups. The open-source option with self-hosting provides data sovereignty that no proprietary competitor can match.
Who Is This For
Product teams who need actionable user behavior insights, developer-focused startups that value data ownership, growth teams running experiments with feature flags and A/B tests, and any company that wants to consolidate their analytics stack (replacing 3-4 tools with one).
Who Is This NOT For
Pure marketing teams that only need web traffic analytics (Google Analytics is simpler), companies with very simple analytics needs (<10K monthly users), or teams without technical resources for self-hosting (use their cloud option instead).
Pros
- +All-in-one platform replaces Mixpanel + LaunchDarkly + Hotjar + Typeform
- +Open-source core with self-hosting option = no vendor lock-in
- +Extremely generous free tier (1M events/month on cloud)
- +Active community and transparent product development
—Cons
- -Self-hosting requires DevOps knowledge and ongoing maintenance
- -SQL access is powerful but requires technical skills to leverage fully
- -Some enterprise features (SSO, audit logs) locked behind Scale/Enterprise plans
- -Documentation can lag behind rapid feature releases
Key Features
Pricing Breakdown
Cloud Free: 1M events/month, all features. Cloud Paid: $0.00031 per additional event (≈$310 per 1M events). Self-Hosted: Free, pay only your infrastructure costs. Scale: Starting at $450/month for higher volumes and dedicated support. Enterprise: Custom pricing for SSO, audit logs, and SLA.
Starting Price
Free / $0.00031 per event
Pricing Model
freemium
Free Tier
Yes
Quick Setup Guide
1. Choose Cloud (faster) or Self-Hosted (data ownership). 2. Install JavaScript snippet or SDK for your stack. 3. Define key events manually or rely on autocapture. 4. Create dashboards for your core metrics. 5. Set up feature flags for your next release. 6. Enable session replay and watch real user sessions.
Real-World Results
Companies using PostHog report finding 2-3 critical UX issues in their first week of session replay analysis. Feature flag-driven rollouts reduce deployment-related incidents by 80%. Teams save an average of $300-800/month by consolidating analytics + feature flags + A/B testing into PostHog.
Bottom Line
PostHog is the analytics platform for builders who want to understand their users deeply without paying enterprise prices or sacrificing data ownership. Start on the free tier, self-host when you need data sovereignty. It's one of the few tools where the free tier is genuinely sufficient for most early-stage products.
What Builders Say
James Wilson
CTO, DevMetrics
PostHog helped us discover that 70% of new users were dropping off at our onboarding step 3. After fixing it with a feature flag-driven redesign, our activation rate went from 18% to 42%. We couldn't have done this with just Google Analytics.
Community Reviews (1)
David Kim
Verified2026-04-28
Discovered a $50K growth opportunity in our onboarding
I set up PostHog on a Friday afternoon and by Monday morning we had identified a critical drop-off in our onboarding. 70% of new users were abandoning at step 3 — a feature explanation screen that was too technical. We used PostHog's feature flags to roll out a simplified version to 50% of users, confirmed the fix through A/B testing, and our activation rate jumped from 18% to 42%. I've used Mixpanel, Amplitude, and Google Analytics — none of them could have caught this as quickly or let us fix it so smoothly.
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