Table of contents
This information is correct as of August 2026. Growth Method has made every attempt to ensure the accuracy and reliability of the information provided.
PostHog and Amplitude both promise the same thing: understand what users do in your product, then act on it. They get there very differently. PostHog sells a bundle of eight-plus products on usage pricing; Amplitude sells a platform that grows into an enterprise contract.
A disclosure before we start: we tend to recommend PostHog, largely because we believe it has the strongest AI and MCP story of any analytics provider. Growth Method itself is agnostic (customers can connect any analytics provider via MCP), so read this as the case we would make to a sceptic, with the places Amplitude genuinely wins called out.
Quick verdict: for most B2B teams starting fresh, PostHog is the stronger default. You get analytics, session replay, feature flags, experiments, surveys, error tracking and a built-in data warehouse on one free tier, with published usage rates after that. Amplitude earns the nod for enterprise analytics organisations that need its governance controls, for teams that want in-product guides, and for marketers drawn to its AI Visibility tracking.
PostHog vs Amplitude comparison
| Feature | PostHog | Amplitude |
|---|---|---|
| Pricing model | Usage-based per product, rates published | Event-based (previously user-based), custom at scale |
| Free plan | 1M events, 5K replays / month | 2M events, 10K replays / month |
| A/B testing | Included, free tier | Included (feature and web experimentation) |
| Surveys | Included (1,500 responses / month free) | Included (guides and surveys) |
| In-product guides | No | Included |
| SQL access | Yes (HogQL) | No (chart builder UI) |
| AI | Max AI | AI Agents, AI Assistant, AI Visibility |
| Official MCP server | Yes, hosted (mcp.posthog.com) | Yes, hosted |
| Ad platform data | Native Google, Meta and LinkedIn Ads sources | Native Google, Meta and LinkedIn import |
| Data warehouse | Built in (1M rows / month free) | Warehouse-native mode now legacy |
| Open source | Yes, with self-host option | No |
Where PostHog wins
The bundle at $0. PostHog’s free tier covers 1M events, 5K session replays, 1M feature flag requests, 1,500 survey responses and 100K tracked exceptions every month, and every product is included from day one. Amplitude’s free plan is generous on events (2M) and replays (10K), but PostHog gives a small team the entire stack (testing, flags, surveys, error tracking) without a single upgrade conversation.
SQL and a built-in warehouse. PostHog lets you query raw event data with HogQL and ships a data warehouse with 1M free rows per month, including native sources for Google Ads, Meta Ads and LinkedIn Ads. Amplitude’s answer to this, warehouse-native Amplitude, is now a legacy feature closed to new customers. If your team ever wants to join product data with ad spend or CRM data, PostHog’s path is shorter.
Shipping speed. PostHog ships new products at a rate no analytics vendor matches, which is why its AI and MCP story leads the category. Cofounder James Hawkins is explicit that this is by design:
We deliberately designed our company for speed. You can too.
Where Amplitude wins
Enterprise governance. Amplitude’s Enterprise plan brings role-based access control, data access controls and unlimited projects. Large analytics organisations with dozens of stakeholders and strict data policies will find the guardrails more mature than PostHog’s.
Guides and surveys. Amplitude bundles in-product guides alongside surveys, so the same platform that spots a drop-off can nudge users through it. PostHog has surveys but nothing equivalent to guides; you would pair it with a separate onboarding tool.
Marketing-facing AI. Amplitude’s AI Agents monitor dashboards, review session replays and synthesise feedback, and its AI Visibility feature tracks how your brand shows up in AI assistant answers. For marketing teams thinking about AI in marketing analytics, that last one is a capability PostHog currently has no answer to.
Product analytics is not marketing analytics
Both are product analytics tools first: built to answer what happens after someone arrives, not which channels, campaigns and spend got them there. Both have pushed into marketing territory further than most rivals. PostHog offers native ad sources and a dedicated marketing analytics view; Amplitude imports ad spend, clicks and impressions from Google, Meta and LinkedIn natively.
PostHog blurs the line most, because its built-in warehouse (with free historical data) can genuinely serve as a small team’s source of truth. Our view still stands: every marketing team, regardless of size, should run a marketing data warehouse it owns, whether that is PostHog’s, BigQuery or Snowflake, and treat the analytics interface as the fast, visual layer on top. Route by job.
Both work with your AI assistant
PostHog and Amplitude both run official hosted MCP servers, so tools like Claude can query analytics, manage flags and build reports conversationally. PostHog’s lives at mcp.posthog.com (with an EU endpoint) and exposes Max AI’s tooling to any MCP client; we have covered Amplitude’s MCP server in a full guide. Either way, the analytics interface your team uses most in two years may well be a chat window, which is exactly why we weight the AI and MCP story so heavily.
The uncomfortable truth
Amplitude cofounder Spenser Skates described the founding insight in an interview about the company’s listing:
Let’s build for the 99% of companies that don’t know how to use product data.
That is still the honest framing for this choice. Both tools exist because most companies collect product data and never use it. Whichever you pick, the differentiator is not the chart builder; it is whether the insights change what marketing campaigns and product bets you make next quarter.
How to choose
- Count the tools you’d replace. List what you pay for testing, flags, surveys, replays and error tracking. PostHog’s bundle usually retires more line items.
- Price the real volume. PostHog publishes per-unit rates; Amplitude quotes custom pricing beyond its Plus plan. If you cannot get a number without a sales call, model that as risk.
- Check who will use it. Engineering-led teams lean PostHog (SQL, self-host, open source). Dedicated analytics teams at enterprise scale lean Amplitude (governance, guides).
- See the other head-to-heads. We have compared Amplitude vs Mixpanel and PostHog vs Google Analytics if your shortlist looks different.
Reviews
Final thoughts
PostHog wins on breadth, price transparency and momentum; Amplitude wins on enterprise polish and marketing-facing AI. For most B2B teams we would start with PostHog and let Amplitude earn its way in through a specific need (guides, governance, AI Visibility) rather than a feature checklist.
About Growth Method
Product analytics tells you what happened. It doesn’t decide what your team should do about it, or track whether the fix worked. That’s the gap Growth Method closes as the agentic marketing platform for B2B teams: connect your analytics stack (PostHog, Amplitude or anything with an MCP server), and Growth Method turns insights into prioritised marketing campaigns, then closes the loop with data-driven attribution once they’re live. Your team gets a shared, first-party record of what you tried, what moved, and why.
Get started to see how it fits your stack.
Frequently asked questions
Is PostHog better than Amplitude?
For most B2B teams starting fresh, yes. PostHog bundles product analytics, session replay, feature flags, experiments, surveys, error tracking and a built-in data warehouse with generous free tiers and transparent usage pricing. Amplitude is the stronger choice for enterprise analytics organisations that want its governance controls, in-product guides and surveys, and marketing-facing AI features.
Is PostHog cheaper than Amplitude?
Usually. PostHog’s free tier includes 1M events, 5K session replays, 1M feature flag requests and 1,500 survey responses per month, with published pay-as-you-go rates after that. Amplitude’s free plan includes 2M events and 10K replays, but its Growth and Enterprise plans are custom-priced, so costs are harder to predict at scale.
What does Amplitude have that PostHog doesn’t?
In-product guides for onboarding users, an AI Visibility feature that tracks how your brand appears in AI assistant answers, native ad-spend import from Google, Meta and LinkedIn, and the governance and role-based access controls large analytics organisations expect at enterprise scale.
Do PostHog and Amplitude support MCP?
Yes. Both run official hosted MCP servers (mcp.posthog.com and Amplitude’s MCP integration), so AI assistants like Claude can query analytics data, manage feature flags and build reports conversationally. Both also ship native AI: PostHog’s Max AI and Amplitude’s AI Agents and Assistant.
Can PostHog or Amplitude replace a marketing data warehouse?
PostHog comes closest: it includes a built-in data warehouse with native sources for Google Ads, Meta Ads and LinkedIn Ads, which can genuinely serve as a small team’s source of truth. Amplitude’s warehouse-native mode is now legacy and closed to new customers. Larger teams should still run a marketing data warehouse they own alongside either tool.