PostHog vs Google Analytics 4 (2026)
Head-to-head comparison for vibe coders: scores, free tiers, pricing and best-for, using the same evidence-based methodology. Rankings are never for sale.
Product analytics, session replay and feature flags in one
Google's free web and app analytics, the industry default
Side-by-side comparison
| Criterion | PostHog | Google Analytics 4 |
|---|---|---|
| Score | 91/100 | 73/100 |
| Free tier | Yes: generous free tier that resets monthly (1M events, 5K replays, 1M flag requests, 100K exceptions); no credit card required on Free | Yes: the standard Google Analytics 4 property is free of charge |
| Open source | Yes | No |
| Pricing | Free forever with monthly allowances (1M analytics events, 5K session replays, 1M feature-flag requests, 100K error exceptions, and more); pay-as-you-go above free limits; platform packages for SSO/audit logs | Free. Analytics 360 (enterprise) is sold through Google's sales team at custom pricing |
| Best for | Vibe-coded SaaS that wants product analytics, replay and flags without stitching three vendors | Apps that run Google Ads or need Search Console and BigQuery integration, and don't mind a consent banner |
| Category | Analytics & monitoring | Analytics & monitoring |
Score breakdown
| Criterion | PostHog | Google Analytics 4 |
|---|---|---|
| Fit for the use case /25 | 24 | 17 |
| Vibe-coder friendliness /15 | 14 | 9 |
| Output quality & reliability /15 | 13 | 13 |
| Pricing & free tier /15 | 15 | 14 |
| Ecosystem & integrations /10 | 9 | 10 |
| Momentum /10 | 9 | 7 |
| Code ownership & lock-in /10 | 7 | 3 |
Based on desk research of official pricing pages and docs; see methodology.
Who wins: PostHog or Google Analytics 4?
By score, PostHog wins PostHog vs Google Analytics 4 at 91/100 vs 73/100. PostHog: The vibe-coding default for product analytics: one product for events, replay and flags, huge free tier that never expires, and an OSS/self-host path. Slightly less focused than Plausible for simple web stats and than Sentry for deep error APM. Google Analytics 4: Free and unmatched for Google Ads and Search Console attribution, so it scores high on pricing and ecosystem. Loses points on vibe-coder friendliness (complex reports, cookie consent) and ownership (data stays in Google unless you export it). PostHog is best for Vibe-coded SaaS that wants product analytics, replay and flags without stitching three vendors. Google Analytics 4 is best for Apps that run Google Ads or need Search Console and BigQuery integration, and don't mind a consent banner.
FAQ
- Which is better, PostHog or Google Analytics 4?
- By our score, PostHog (91/100) ranks above Google Analytics 4 (73/100). PostHog is best for Vibe-coded SaaS that wants product analytics, replay and flags without stitching three vendors. The right pick still depends on your workflow; see the side-by-side table.
- What is the PostHog vs Google Analytics 4 score?
- PostHog scores 91/100 and Google Analytics 4 scores 73/100 on PromptToProd's evidence-based ranking. Scores are never for sale.