How Much Does PostHog Cost in 2026?

PostHog has built the product analytics category's most transparent and comprehensive suite with fully disclosed unit pricing across every product. Founded 2020 and YC-backed, PostHog emerged as the open-source challenger to Mixpanel + Amplitude's custom-quote enterprise pricing model. The value proposition is threefold: (1) transparent per-unit pricing eliminates sales-contact friction for scaling beyond free tiers, (2) comprehensive product suite consolidates analytics + session replay + feature flags + experiments + data warehouse + error tracking + surveys + LLM analytics into single platform, (3) open-source self-hosted deployment available for data sovereignty + security requirements. For early-stage SaaS (pre-seed through Series B, under 1M events/month), PostHog's free tier is the most generous in the category — 1M events + 5K session recordings + 1M feature flag requests + 100K error tracking exceptions + 1.5K survey responses + 1M data warehouse rows monthly. Compared to Mixpanel Free (1M events + 5 saved reports + 10K replays) or Amplitude Starter (10K MTUs + 10M events + session replay) or Heap Free (10K sessions + core charts) or Pendo Free (500 MAUs only), PostHog's free tier delivers materially more across more product categories. For scaling startups (1M-50M events/month), pay-as-you-go pricing is transparent: $0.00005/event in 1-2M tier (scaling to $0.00009/event at 250M+ events — unique inversion where per-event costs increase at extreme scale, intended to push large customers to negotiate volume contracts). Session replay at $0.005/recording web + $0.01/recording mobile is competitive. Feature flags at $0.0001/request (1-2M tier, reducing to $0.00001/request at 50M+ — 10x reduction) is category-leading. Data warehouse at $0.000015/row (1-10M tier, historical syncs free) is most affordable in category — Mixpanel + Amplitude + Heap charge premiums for warehouse export. For enterprises, PostHog Cloud pay-as-you-go eliminates the custom-quote process entirely — calculate monthly spend from event + recording + flag + row volumes. Self-hosted open-source deployment enables data sovereignty for regulated industries (healthcare, finance, government) and security-conscious organizations. Caveat: self-hosted is not free when infrastructure is factored — ClickHouse + Kafka + Postgres + Redis operating expertise required. Most SaaS should run PostHog Cloud with pay-as-you-go model. Where PostHog wins: most generous free tier across entire category, fully transparent per-unit pricing (no sales contact required at any scale), most comprehensive product suite (8 products) in single platform, open-source + self-hosted deployment option unique in category, modern tech stack + fast iteration (founded 2020 vs Mixpanel/Amplitude founded 2009/2012), 7-year data retention on pay-as-you-go (longer than most competitors). Where it loses: less enterprise sales motion than Mixpanel/Amplitude for Fortune 500 deployments, smaller ecosystem of integrations + partners than incumbents, self-hosted requires significant engineering expertise, newer product analytics feature depth still catching up to Mixpanel/Amplitude in niche capabilities (advanced behavioral cohorts, specific funnel analysis).