Google Analytics comparisons
PostHog vs Google Analytics: which should you use in 2026?
Updated
Key takeaways: PostHog vs Google Analytics
Pick PostHog if…
- You run a SaaS or app and care about activation, retention and feature usage by signed-in users.
- You want session replay, feature flags, A/B tests and surveys in the same tool.
- You want SQL access to your raw events and a 7-year retention on paid plans.
- You want an open-source option and EU hosting (Frankfurt).
Pick Google Analytics if…
- You mainly need to know where traffic comes from and which campaigns convert.
- Google Ads, Search Console and Looker Studio are core to your reporting.
- You need it free at any volume — PostHog is free only up to 1M events a month.
- Your marketing team already knows GA4.
PostHog vs Google Analytics at a glance
Facts from each vendor's public pages, checked October 2026.
| Feature | PostHog | Google Analytics |
|---|---|---|
| Built for | PostHogProduct teams and engineers | Google AnalyticsMarketers and analysts |
| Price | PostHogFree up to 1M events/mo; then usage-based ($0.00005/event for 1–2M) | Google AnalyticsFree; Analytics 360 by quote |
| Open source | PostHogYes — MIT | Google AnalyticsNo |
| Hosting | PostHogUS or EU Cloud (Frankfurt); self-host possible | Google AnalyticsGoogle |
| Cookies / consent | PostHogCookie + localStorage default; cookieless_mode option | Google Analytics_ga cookies; consent required in EEA/UK/CH |
| Web analytics dashboard | PostHogYes — traffic, sources, pages, UTM | Google AnalyticsYes — the core product |
| Product analytics | PostHogFunnels, retention, cohorts, paths, SQL | Google AnalyticsExplorations (funnel, path, cohort) |
| Session replay & heatmaps | PostHogYes | Google AnalyticsNo |
| Feature flags & experiments | PostHogYes | Google AnalyticsNo (Google Optimize was shut down in 2023) |
| Ads integration | PostHogVia data pipelines | Google AnalyticsNative Google Ads, Merchant Center |
| Data retention | PostHog1 year Free, 7 years paid | Google AnalyticsExplorations: 2 or 14 months on standard |
PostHog vs GA4 for privacy and consent
Both set identifiers by default and in the EU usually need consent. PostHog's cookieless_mode (always, or only for visitors who reject cookies) counts users with a server-side privacy-preserving hash, so you can still see anonymous traffic from people who decline. Its EU Cloud in Frankfurt disables IP capture by default for new projects, and self-hosting keeps data entirely in your hands.
GA4's Consent Mode v2 can send cookieless pings when consent is denied and model missing users, if your property meets Google's thresholds. GA4 doesn't store EU users' IP addresses, and its US transfers rely on the EU–US Data Privacy Framework.
PostHog vs Google Analytics pricing at three traffic levels
GA4 is free. PostHog's first 1M events a month are free, then graduated per-event pricing. Monthly product-analytics cost at list price, October 2026:
| Monthly traffic | 1M events/mo | 5M events/mo | 10M events/mo |
|---|---|---|---|
| PostHog | 1M events/mo: $0 | 5M events/mo: ≈ $103 (anonymous events) | 10M events/mo: ≈ $324 (anonymous events) |
| Google Analytics | 1M events/mo: $0 | 5M events/mo: $0 | 10M events/mo: $0 |
PostHog figures are computed from its published rates and exclude session replay and the identified-events add-on (≈ $1,080/mo total at 10M identified events).
Setting up PostHog vs GA4
PostHog installs with a JavaScript snippet or SDKs (web, mobile, server). Autocapture records pageviews and clicks immediately; meaningful product analytics needs identify() on login and a set of named events. GA4 installs via gtag or Tag Manager; the work is consent, key events, retention settings and linking Google products.
Do you need PostHog, GA4, or both?
Many SaaS companies run both: GA4 (or a lighter web analytics tool) for the marketing site and campaigns, PostHog for in-product behavior. If your product is the website — a content site, a store, a lead-gen site — GA4 or a privacy-first web analytics tool is usually enough. If your product is an app people log into, PostHog answers questions GA4 can't.
Moving from GA4 to PostHog
PostHog publishes a manual migration guide for Google Analytics data. Universal Analytics history is gone. Most teams don't migrate history at all: they install PostHog, rebuild key dashboards, and keep GA4 read-only for the old data.
A third option: VisitTrack
Disclosure: VisitTrack publishes this page.
If you need the marketing half of this comparison — channels, campaigns and which sources bring paying customers — without GA4's consent friction, VisitTrack is a privacy-first web analytics tool with revenue attribution from Stripe, Paddle, Lemon Squeezy, Polar and Razorpay, funnels, journeys, Search Console keywords, session replays and heatmaps, from $5/mo. It's not a replacement for PostHog's feature flags or experiments.
PostHog vs Google Analytics: frequently asked questions
Can PostHog replace Google Analytics?
For many SaaS teams, yes — PostHog includes a web analytics dashboard with sources, pages and UTM data. It lacks GA4's native Google Ads integration, so ad-heavy marketing teams often keep GA4 or another web analytics tool.
Is PostHog free?
Up to a point. PostHog's free tier includes 1M analytics events, 5K session recordings and 1M feature-flag requests per month; beyond that it's usage-based.
Does PostHog need a cookie banner?
By default, generally yes in the EU, since it sets a cookie and localStorage. Its cookieless mode can count visitors without storing anything, but identified-user features need persistence.
Is PostHog more accurate than GA4?
Neither is perfectly accurate: both are affected by ad blockers and consent. PostHog doesn't sample queries; GA4 samples above 10M events per query and applies thresholds to low-count rows.
Does Google Analytics have session replay or feature flags?
No. GA4 has neither; Google Optimize, its A/B testing tool, was shut down in 2023. PostHog includes replay, flags and experiments.
Should a SaaS startup use PostHog or Google Analytics?
Use PostHog (or another product analytics tool) for in-app behavior, and GA4 or a privacy-first web analytics tool for the marketing site. Many startups use one tool for each job.
Sources and methodology
Prices and features were checked on each vendor's public pages in October 2026. Vendors change plans often — confirm on the official pricing page before you buy. VisitTrack publishes this comparison and competes with some of these tools; we have no affiliate relationship with either vendor.
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- Plausible vs Google AnalyticsPaid, cookie-free, EU-hosted Plausible against free, cookie-based GA4 — privacy, accuracy, cost and how to switch.
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