PostHog vs Amplitude

Pricing Philosophy: Events vs. Users

The fundamental pricing difference shapes which platform fits which team. PostHog charges per event with a generous 1M events/month free tier, meaning a small team tracking a few hundred users who generate rich behavioral data pays proportionally. Amplitude charges per Monthly Tracked User (MTU), which favors apps with many users who generate few events each but can become expensive for high-engagement products. PostHog's transparent, self-serve pricing (no sales call required) aligns with the creator economy ethos — over 90% of PostHog's users never pay. Amplitude's Growth and Enterprise tiers require sales conversations, with enterprise contracts commonly running $100K–$250K+ annually for 500K+ MTUs.

AI and the Agentic Analytics Layer

Both platforms are racing to become the analytics layer for the agentic web, but their approaches differ significantly. Amplitude has made the most aggressive move with its February 2026 launch of a Global Agent and four specialized AI agents that autonomously monitor dashboards, review sessions, run experiments, and process feedback. Its MCP server exposes 20+ analytical skills to Claude, Cursor, Figma, and other AI tools — meaning an agent orchestrating a product workflow can pull retention curves or funnel breakdowns without a human opening the UI. PostHog's AI capabilities are more tightly integrated into the developer workflow: natural-language querying, AI-assisted SQL writing, and an LLM analytics module that tracks token usage, latency, and conversation quality for teams building AI-native products. For teams building AI products, PostHog's LLM analytics is uniquely valuable; for teams wanting AI to consume their analytics, Amplitude's agentic infrastructure leads.

The All-in-One vs. Best-of-Breed Tradeoff

PostHog's defining advantage is consolidation. Analytics, session replay, feature flags, A/B testing, error tracking, surveys, and a data warehouse in one platform means fewer vendor contracts, one SDK, and a single data model. This is especially powerful for vibe coding workflows where a developer shipping a new app in hours doesn't want to evaluate and integrate six separate tools. Amplitude takes the opposite approach for some capabilities — it excels at analytics and experimentation but requires Sentry for error tracking, a separate survey tool, and an external data warehouse. However, Amplitude's depth in its core competencies (predictive analytics, multi-touch attribution, journey mapping) often exceeds what PostHog offers in those specific areas.

Open Source and Data Sovereignty

PostHog's open-source nature isn't just philosophical — it has practical implications for data sovereignty, auditability, and vendor lock-in. Teams can self-host PostHog on their own infrastructure, keeping all behavioral data within their security perimeter. This matters enormously for regulated industries, government contractors, and teams building AI agent applications that handle sensitive user interactions. Amplitude is cloud-only with no self-hosting option, though it offers robust enterprise compliance controls including HIPAA eligibility and advanced data governance features that many large organizations require. The tradeoff is clear: PostHog gives you the keys to the infrastructure; Amplitude gives you the compliance paperwork.

Developer Experience vs. Enterprise Workflows

PostHog is built by and for product engineers. Its documentation reads like well-written code comments, its API-first design means everything can be automated, and features like HogQL (a SQL dialect for querying PostHog data) and the built-in data warehouse let technical users go deep without leaving the platform. Amplitude serves a broader audience including product managers, marketers, and analysts who may not write code. Its UI is more polished for non-technical exploration, its collaboration features are more mature, and its governance controls (role-based access, audit logs, SSO/SAML) satisfy enterprise IT requirements that PostHog is still building toward.

Experimentation in the Age of Rapid Iteration

Both platforms offer A/B testing and feature experimentation, but the experience differs. PostHog bundles experimentation into its free tier with 1M feature flag requests/month and Bayesian statistical analysis — sufficient for most startups and growth-stage companies. Amplitude's experimentation suite, recognized as a Leader by Forrester in the Digital Analytics Solutions Wave (Q3 2025), offers more sophisticated statistical methods, mutual exclusion groups, and web experimentation for no-code A/B tests — capabilities that matter at enterprise scale where dozens of experiments run simultaneously. As vibe coding accelerates the pace of feature development, the bottleneck shifts from building to measuring, making experimentation infrastructure increasingly critical regardless of which platform you choose.