Comparison

Amplitude vs PostHog

Overview

See what users do. Improve what matters.

Amplitude is a digital analytics platform for understanding user behavior and improving product and marketing performance. It brings together analytics, experimentation, session replay, guides, surveys, and AI-powered workflows so teams can measure impact and act faster.

PostHog

The only all-in-one platform built for engineers

posthog.com →

PostHog is an open-source product analytics suite with event tracking, feature flags, A/B testing, session replay, and error monitoring deployable as a single platform.

Which should you choose?

Both are freemium product analytics platforms with session replay and a free tier, scaling to enterprise. Amplitude leans toward product and marketing teams with heatmaps, feature/web experimentation, and guided surveys. PostHog is built engineer-first, bundling feature flags, A/B experiments, surveys, and error tracking into one open platform. Choose Amplitude if your primary users are product/growth teams wanting polished experimentation tools; choose PostHog if engineers want analytics, flags, and error tracking in a single developer-friendly tool.

TLDR

—If product and growth teams need polished analytics and experimentation, choose Amplitude.
—If engineers want analytics, feature flags, and error tracking bundled in one tool, choose PostHog.

Features

—Product analytics
—Session replay
—Heatmaps
—Feature experimentation
—Web experimentation
—Guides and surveys
—Data governance
—AI agents

—Product analytics
—Session replay
—Feature flags
—A/B experiments
—Surveys
—Error tracking
—Data warehouse
—Self-hosting option

Pricing

Amplitude

freemiumFree plan available

Plan	Price	Notes
Starter	Free	Free plan with 10K MTUs and up to 10M events.
Plus	$49/mo	Starts at $49/month and scales by MTUs; up to 300K MTUs or 25M events.
Growth	Contact sales	Custom MTU or event volume; contact sales.
Enterprise	Contact sales	Custom MTU or event volume; contact sales.

View pricing page →

PostHog

freemiumFree plan available

Plan	Price	Notes
Free	Free	1M events/month free; generous limits per product.
Usage-based	Contact sales	Pay per event beyond free tier; e.g. $0.000045/event.
Teams	$450/mo	Add-on: SSO, SAML, advanced permissions.
Enterprise	Contact sales	Custom pricing, SLA, dedicated support.