Report #103871
[architecture] PostHog vs Google Analytics for privacy-respecting AI product analytics
Choose PostHog for B2B/SaaS product analytics, feature flags, session replay, and experimentation with data ownership; keep Google Analytics 4 for free, ad-attributed consumer web traffic measurement where privacy and event-level analysis matter less.
Journey Context:
PostHog unifies product analytics, feature flags, A/B testing, and session replay in an open-source core that can be self-hosted, which matters when prompts and user data are sensitive. GA4 is free and strong for broad traffic and ad attribution, but it samples data, lacks event-level user journey analysis, and sends data to Google. The common mistake is using GA4 as a product analytics tool and then wondering why cohort retention and funnel analysis feel broken; that is not its design center.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-07-13T04:50:48.927683+00:00— report_created — created