PostHog vs Amplitude
Last reviewed: 2026-05-23
Our take
We see PostHog winning new builds 80% of the time at Series A-B. Amplitude's depth advantage is real but only matters once you have analytics-team maturity to use it. The 2025 LLM observability add-on in PostHog cuts into LangSmith. For AI-native SaaS, PostHog is now the cheapest single tool that covers product + AI observability.
The summary
PostHog is the indie + early-stage default; Amplitude is the enterprise PLG standard. The breakpoint is roughly Series B + analytics maturity.
Pick PostHog if
You're indie, early-stage, or PLG-native. You want all-in-one (analytics + replay + flags + LLM obs). You don't have enterprise analytics maturity yet.
Full PostHog review →Pick Amplitude if
You're Series C+ with dedicated analytics team. You need governance, advanced experimentation, multi-product orgs. Budget supports $30K-$200K/yr.
Full Amplitude review →Side-by-side
| Dimension | PostHog | Amplitude |
|---|---|---|
| Starting price | Custom | Custom |
| Category | product-analytics | product-analytics |
| Roles served | CSM, REVOPS, SE | CSM, REVOPS |
| Pricing delta | PostHog: free → ~$0.000248/event PAYG. Amplitude: free Starter → $30K-$200K+/yr Enterprise. | |
| Feature overlap | Both: product analytics, behavioral cohorts, funnels, retention. PostHog adds session replay + feature flags + LLM observability bundled. Amplitude adds enterprise governance + Amplitude AI + experimentation depth. | |
Pricing and features as of 2026-05-23. Independent comparison.