Product analytics with session replay and feature flags
PostHog gives product teams analytics, funnels, session replay, feature flags, surveys, and experimentation in one platform. Open source and self-hostable, with a generous free cloud tier.
PostHog is a strong fit if its core strengths match your workflow, budget, and support needs. Use the quick signals below before opening the full review.
PostHog is an open-source product analytics platform that provides analytics, session replay, feature flags, A/B testing, and surveys in a single product. Founded in 2020 after a Y Combinator-backed pivot, PostHog grew rapidly by targeting developers directly — offering a self-hostable, open-source alternative to the expensive combination of Mixpanel, LaunchDarkly, and FullStory that growth-stage companies typically pay thousands of dollars per month to maintain.
The core product insight is that product analytics, session replay, and feature management are deeply interconnected. Watching a session replay while seeing the funnel drop-off point provides context that neither tool delivers alone. PostHog makes all of this queryable from the same event data layer — meaning teams can create a feature flag, launch it to a user cohort, track their conversion funnel, and watch session replays of users who dropped off, all within one platform.
PostHog Free includes 1 million events, 5,000 session recordings, 1 million feature flag requests, and 250 survey responses per month — permanently free, not a trial. Usage-based pricing applies above these limits: $0.00031/event, $0.005/recording, $0.0001/flag request. Most teams stay below the free tier for months. Self-hosting on your own infrastructure has no per-event cost — only compute.
PostHog is the right choice for developer-led product teams who want to consolidate analytics, session replay, and feature management tooling without vendor lock-in. Its open-source core and self-hosting option make it particularly appealing to teams with data residency requirements. Startups can replace Mixpanel, LaunchDarkly, and FullStory with PostHog's free tier.
PostHog requires developer instrumentation — adding tracking to your product codebase for events you want to measure. The self-hosted version requires server management and ongoing maintenance. PostHog's UI, while functional and improving, is less polished than dedicated specialist tools. There is no formal affiliate programme.
The best product analytics platform for developer-led teams on a budget. Consolidates analytics, session replay, and feature flags at a price point that is difficult to match. For teams who can instrument their product, PostHog's free tier effectively eliminates the cost of the analytics stack.
Free
Free billed annually
Contact sales
PostHog is best for Product teams, Developers, Growth teams.
Yes. PostHog currently lists a free plan in ToolRankr data.
It has a free plan.
PostHog is reviewed using ToolRankr's scoring model for ease of use, value, features, support, and overall quality. Affiliate links may earn a commission, but sponsored labels do not change editorial scoring.
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