Amplitude vs PostHog
Amplitude and PostHog are both analytics tools. Amplitude is aimed at small businesses and enterprise, while PostHog is aimed at developers and small businesses. Both have a free plan.
Product analytics, session replay and experiments for digital teams
Open-source product analytics, replays and flags
| Pricing | Freemium | Freemium |
| Starting price | Not published | Not published |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Built for | Small businesses, Enterprise, Developers | Developers, Small businesses |
| Platforms | web | web |
| Country | US · 2012 | US · 2020 |
| Rating | — | — |
Choose Amplitude if
Product-led SaaS, mobile and e-commerce teams that want self-serve behavioral analytics with replay and experiments on one data model.
- Free plan with 2M events, replay and experiments is generous
- Self-serve charts that product managers can build without analysts
- Analytics, replay, experiments and guides share one data model
Look elsewhere if: Small marketing sites that only need traffic reports or engineering-led teams wanting open source and transparent usage pricing (Google Analytics, PostHog).
Choose PostHog if
Engineering-led startups and scale-ups that want analytics, replay, flags and experiments without three vendors.
- Several products in one with shared data
- Generous free allowances; usage-based beyond
- Open source and engineer-friendly
Look elsewhere if: Marketing-only web analytics (Plausible) or large enterprises standardized on Amplitude.
Amplitude vs PostHog pricing
Amplitude
- Free$02M events/mo, session replay, 1 experiment, AI agents
- PlusFrom $0Event-based above 2M free events, up to 70M; card required
- GrowthCustomCustom event-based pricing; A/B testing, predictions, SSO
- EnterpriseCustomRBAC, SCIM, data access controls, account manager
PostHog
- Free$01M events, 5K recordings, 1M flag requests, 1,500 survey responses/mo
- Pay-as-you-gofrom $0.00005/per eventPer product after free tier, as low as $0.000009/event; billing limits
- Boost$250/moPlatform package: unlimited projects, SSO enforcement, HIPAA BAA
- Scale$750/moPriority support, SAML; includes Boost
- EnterpriseCustomRBAC, dedicated support, training
Amplitude · Key features
- Funnels, retention, cohorts and user journey analysis without SQL
- Session replay and heatmaps linked to analytics charts
- Feature flags, A/B/n tests and web experimentation
- In-app guides and surveys built on the Command AI acquisition
- AI agents that monitor metrics and explain changes, plus an MCP server
- Audience activation syncs to ad, CRM and messaging tools
Cons
- Growth and Enterprise prices are not published and can be steep
- Plus overage rates beyond 2M events are not shown on the pricing page
- Instrumentation and taxonomy planning take real setup effort
PostHog · Key features
- Product analytics: funnels, retention, paths, trends, lifecycle
- Session replay with console and network logs
- Feature flags and multivariate experiments
- Surveys and in-app feedback
- Data warehouse, HogQL SQL and CDP destinations
- Error tracking and LLM observability
Cons
- UI can feel dense; analytics UX trails Amplitude
- Costs need monitoring across many products
- Self-hosting only recommended for small scale
Amplitude vs PostHog: FAQ
Do Amplitude and PostHog have a free plan?
Yes, both Amplitude and PostHog have a free plan; paid plans add more usage and features.