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

A feature-by-feature comparison of Mixpanel and PostHog, covering pricing, event limits, session replay, feature flags, and self-hosting to help you pick the right product analytics tool.

Updated 2026-09 · 2026

Mixpanel

Event-based product analytics with polished dashboards and funnels

Freeup to 20M events/mo, Growth plan from $28/mo billed annually

Strengths

+Clean, intuitive UI for building funnels, retention, and cohort reports
+Generous free tier (20M events/month) for a single-product analytics tool
+Strong ad-hoc analysis tools (Insights, Flows, Impact)

Weaknesses

-No built-in session replay, feature flags, or A/B testing — analytics only
-Not open source, no self-hosting option
-Costs scale quickly once you exceed the free event allowance

Best for

Teams that want a dedicated, easy-to-use product analytics tool and don't need replay, flags, or experiments in the same product.

PostHog

Open-source product analytics, session replay, feature flags, and A/B testing in one platform

Freeup to 1M events/mo, then usage-based pricing (~$0.00005/event)

Strengths

+All-in-one: analytics, session replay, feature flags, A/B testing, surveys, and a data warehouse
+Open source with a self-hosted option, so you can avoid vendor lock-in
+Generous free tier across multiple products, not just events

Weaknesses

-UI is more utilitarian and has a steeper learning curve than Mixpanel's
-Self-hosting requires ops effort; cloud version is the practical default for most teams
-Feature sprawl can make it harder to find and master a single workflow

Best for

Teams that want analytics, replay, feature flags, and experimentation in one tool without paying for four separate SaaS products.

Feature Comparison

Feature	Mixpanel	PostHog
Free tier	20M events/month	1M events/month + free replay/flags allowance
Session replay	Not included	Built-in, included in free tier
Feature flags	Not included	Built-in
A/B testing / experiments	Add-on (limited)	Built-in, tied to feature flags
Open source	No	Yes (self-hostable)
SQL access to raw data	Limited (via exports/warehouse connectors)	Yes, via HogQL query editor
Funnels & retention analysis	Yes, mature and polished	Yes
Group/account-level analytics	Yes (paid plans)	Yes (group analytics add-on)
Surveys	No	Yes, built-in
Pricing model beyond free tier	Tiered plans (Growth from $28/mo)	Pay-as-you-go per event/recording
Data warehouse export	Available on higher plans	Built-in data warehouse + native warehouse sync
Self-hosting	No	Yes, via open-source deployment

The Verdict

If you only need clean, best-in-class event analytics and don't mind paying for other tools separately, Mixpanel's UI is still hard to beat. But for most small teams, PostHog wins on value: you get analytics, session replay, feature flags, and A/B testing under one free tier, which usually replaces three or four separate SaaS bills. Switch to PostHog if you're currently paying for Mixpanel plus a replay tool and a feature-flag service — the consolidated pricing alone pays for the migration effort.

How to switch from Mixpanel to PostHog

1Export your historical data from Mixpanel using the Raw Data Export API or the Data Pipelines export feature, saving events as JSON or CSV files.
2Create a PostHog project (cloud or self-hosted) and use PostHog's import tools or a custom script to load the exported Mixpanel events into PostHog's events table.
3Install the PostHog SDK (JS snippet, mobile SDK, or server library) alongside your existing Mixpanel tracking so both tools collect new events in parallel for at least a few weeks.
4Recreate your key Mixpanel funnels, retention reports, and dashboards in PostHog using Insights, and set up any feature flags or A/B tests you previously ran in separate tools.
5Reconnect integrations (Slack alerts, Segment, Zapier, data warehouse syncs) to point at PostHog instead of Mixpanel.
6Once PostHog's data matches expectations and the team is comfortable with the UI, remove the Mixpanel tracking snippet and cancel the Mixpanel subscription.

Mixpanel vs PostHog: common questions

How do I export my data from Mixpanel before switching to PostHog?+

Use Mixpanel's Raw Data Export API (or the Export feature in the UI on paid plans) to pull events as JSON or CSV. For a full historical dump, request an export via Mixpanel's Data Pipelines/Export add-on if you're on a Growth or Enterprise plan, since the self-serve export has date-range and volume limits on lower tiers.

What do I lose by switching from Mixpanel to PostHog?+

You lose Mixpanel's specific UI conventions (Impact, Flows) and some of its enterprise compliance certifications if those matter to you. Historical Mixpanel data doesn't automatically merge with new PostHog events — you'll typically run both in parallel for a transition period rather than get a perfect one-to-one migration.

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

For most early-stage products under 1M events/month, yes — the free tier includes analytics, session replay, and feature flags, which would otherwise require three separate paid tools. Once you cross 1M events you pay per-event, but the rate is low enough that small teams often stay under $50-100/month for a while.

Does PostHog integrate with the same tools Mixpanel does?+

PostHog has native integrations for Segment, Zapier, Slack, and most major frameworks (React, Next.js, iOS, Android), plus a reverse-ETL/data warehouse sync feature. Coverage is broadly comparable to Mixpanel, though some niche Mixpanel-specific connectors may not have a direct PostHog equivalent.

Will PostHog actually cost less than Mixpanel over time?+

For teams already paying for Mixpanel Growth/Enterprise plus a separate session replay or feature-flag tool, PostHog is usually cheaper because it replaces multiple subscriptions with one usage-based bill. If you're a low-volume team that only needs core analytics and stays within Mixpanel's 20M free events, Mixpanel can remain free longer, so the cost advantage depends on your event volume and whether you need the extra products.