Amplitude vs PostHog: Which Product Analytics Tool Should You Use?

A detailed comparison of Amplitude and PostHog covering pricing, features, and migration steps for teams choosing a product analytics platform.

Updated 2026-09 · 2026

Amplitude

Enterprise product analytics with deep behavioral insights

Free / Plus from $49/mo / Growth & Enterprise customMTU (monthly tracked users)

Strengths

+Mature, polished cohort and behavioral analysis tools
+Strong enterprise support and onboarding
+Large integration ecosystem built over a decade

Weaknesses

-Gets expensive fast once you exceed the free tier's 50k MTUs
-Feature flags and experimentation are separate paid add-ons
-Session replay is limited compared to all-in-one competitors

Best for

Mid-market to enterprise product teams that need deep behavioral analytics and have budget for it

PostHog

All-in-one open-source product analytics, feature flags, and session replay

Free tier (1M events/mo) / pay-as-you-go afterevent

Strengths

+Generous free tier with no seat limits
+Analytics, feature flags, session replay, surveys, and A/B testing in one tool
+Open-source and self-hostable for full data control

Weaknesses

-Deep funnel and cohort analysis UI is less polished than Amplitude's
-Self-hosting requires ops effort to maintain
-Integration marketplace is smaller than Amplitude's

Best for

Small teams and startups that want analytics, flags, and replay in one tool without per-seat costs

Feature Comparison

Feature	Amplitude	PostHog
Free tier limit	50,000 MTUs/month	1,000,000 events/month
Pricing model	Per monthly tracked user (MTU)	Per event, pay-as-you-go
Session replay	Limited, often add-on	Included, 5,000 recordings free/mo
Feature flags	Paid Experiment add-on	Built-in, included in free tier
A/B testing	Paid Experiment add-on	Built-in
Self-hosting option	No	Yes (open source)
Data export	Export API / Data Export (Governance settings)	Full export, open source, self-host anytime
Cohort analysis	Advanced, mature	Good, less mature
Surveys	Not native	Built-in surveys tool
Direct SQL querying	Limited	HogQL (SQL-like querying)
Dashboards	Polished, enterprise-grade	Functional, improving
Support	Dedicated enterprise support	Community + paid support tiers

The Verdict

PostHog wins for small teams and startups that want analytics, feature flags, session replay, and A/B testing in one free-to-start tool without per-seat pricing. Amplitude still makes sense for larger orgs that need mature cohort analysis and dedicated enterprise support and can absorb the cost. If you're under a few million events a month, PostHog will likely save you real money without giving up much functionality.

How to switch from Amplitude to PostHog

1Export your historical event data from Amplitude using the Export API (or Governance > Data Export), which returns gzipped JSON files you can transform into PostHog's ingestion schema.
2Sign up for PostHog Cloud (or self-host it) and create a project, then grab your project API key from Project Settings.
3Batch-import your transformed historical events into PostHog using its HTTP `capture` API or a script, so your dashboards have backfilled data from day one.
4Re-instrument your app or website with PostHog's SDK alongside Amplitude temporarily, and compare event counts to validate data parity before fully cutting over.
5Manually recreate your key dashboards, funnels, cohorts, and feature flags in PostHog — these definitions do not migrate automatically from Amplitude.
6Once data and dashboards are validated, remove the Amplitude SDK from your codebase and cancel your Amplitude subscription.

Amplitude vs PostHog: common questions

How do I export my data from Amplitude to migrate to PostHog?+

Amplitude has an Export API (also accessible via Governance > Data Export) that lets you pull raw event data as gzipped JSON files. For full historical migration, use this API to pull all events, then transform the output into PostHog's ingestion format and batch-import via PostHog's HTTP `capture` API. Note that full raw event export typically requires a paid Amplitude plan with API access — the free plan restricts export scope.

What features will I lose moving from Amplitude to PostHog?+

You'll lose Amplitude's more mature cohort builder and predictive/lifecycle analytics tools, which are more polished than PostHog's equivalents. PostHog's UI for deep multi-step funnel analysis is functional but less refined for complex enterprise reporting. You'll also lose Amplitude's dedicated enterprise support unless you pay for PostHog's higher-tier support plans.

Is PostHog's free tier enough for a small team?+

For most small teams under 1 million events/month, yes — the free tier includes product analytics, 5,000 session recordings, feature flags, and surveys with no seat limits. If your app has a high user count but lower events per user, compare carefully since Amplitude's free plan caps at 50,000 MTUs regardless of event volume, while PostHog caps at total events instead.

Does PostHog have the same integrations as Amplitude?+

PostHog supports major integrations like Segment, Zapier, Slack, Stripe, and SDKs for JS, Python, and mobile, but its integration marketplace is smaller than Amplitude's, which has been building partner integrations for over a decade. If you depend on a niche Amplitude integration (e.g., a specific data warehouse sync), check PostHog's app directory first to confirm support exists.

Will switching to PostHog actually save money over time?+

For teams under a few million events/month, usually yes — PostHog's pay-as-you-go pricing starts free and scales gradually with volume discounts, while Amplitude's Plus/Growth plans start at $49/mo and scale by MTU count, often reaching hundreds or thousands per month as your app grows. At very high event volumes (tens of millions/month) the cost gap narrows, so run both companies' pricing calculators against your actual traffic before committing.