Amplitude vs PostHog
A detailed comparison to help you choose between Amplitude and PostHog.
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Verdict: PostHog wins
PostHog scores 4.4/5, edging out Amplitude at 4.2/5. Engineering-led product teams that want analytics, session replay, flags and error tracking in one open-source platform and are willing to configure event design and sampling deliberately.
Amplitude Product analytics platform that tracks user behavior and predicts outcomes | PostHog Product analytics platform with built-in session replay and feature flags | |
|---|---|---|
| Rating | 4.2 (1 review) | 4.4 (1 review) |
| Pricing Model | freemium | freemium |
| Starting Price | Free tier available | Free tier available |
| Best For | Product and growth teams who will use deep cohort, funnel and retention analysis daily and can get a written per-event rate before scaling past the free tier. | Engineering-led product teams that want analytics, session replay, flags and error tracking in one open-source platform and are willing to configure event design and sampling deliberately. |
| Free Tier | ||
| API Access | ||
| Team Features | ||
| Open Source | ||
| Tags | free tierapi accessteam features | free tieropen sourceapi access |
| Visit Amplitude → | Visit PostHog → |
Amplitude
Pros
- + The free tier carried a complete analysis workflow for me — funnel, retention, cohorts, dashboards and session replay — at 2M events/month with unlimited teammates
- + Analysis depth is the best in the category: chaining a funnel into a cohort into retention and then replaying the drop-off sessions worked end to end without exporting
- + Conversion drivers surfaced an activation correlate I would not have guessed from the funnel alone
- + Overage on Plus bills at 1.0x your per-event fee rather than a penalty rate, and experiment exposure events are free — two terms that favor the buyer
- + Agent Analytics (trace analysis, LLM evaluators, topic clustering) is aimed at teams shipping AI agents, which almost no other analytics vendor covers
Cons
- - No published per-event rate anywhere — Plus pricing lives only in an estimator widget, and Growth/Enterprise are quote-only
- - Session replay retention is one month on every plan; longer retention is an add-on, so quarter-over-quarter replay comparison is impossible by default
- - One active experiment on Free and Plus is a trial allowance; real experimentation needs Growth plus percentage-priced add-ons
- - Two vendor pages state the free ceiling differently (2M events vs 10K MTUs + 2M events), so actual limits must be checked in the billing panel
- - The interface has many paths to the same question; the non-analyst I onboarded needed training before self-serving
PostHog
Pros
- + Free tier resets monthly and covers real work: 1M events, 5K recordings, 1M flag requests and 100K exceptions per month, with every feature available and no credit card
- + Funnel-to-replay-to-error-trace in one timeline replaced a three-tool debugging loop I used to run across separate user IDs
- + Self-hosting under MIT keeps event data inside your own infrastructure — the practical answer I recommend for regulated teams
- + No seat-based pricing at all; adding engineers, PMs and analysts to my projects never changed the bill
- + Billing limits are hard caps you set yourself, so a runaway autocapture config stops at your ceiling instead of at a surprise invoice
Cons
- - Session replay, not analytics, became the largest cost line in my test project once traffic passed the 5K free recordings
- - The interface packs nine-plus products into one navigation; new users I onboarded needed a full day before finding the right tool consistently
- - Self-hosting is a genuine ops burden (ClickHouse, Kafka, Postgres) and the self-hosted build lacks SAML SSO and granular permissions
- - Identified events cost nearly 4x anonymous events in the first paid band, so user-identification choices move the bill more than event volume does
- - Past a billing limit PostHog drops data until the next period — cost control comes at the price of visibility
Frequently Asked Questions
Which is better, Amplitude or PostHog?▼
PostHog scores higher at 4.4/5 vs 4.2/5 for Amplitude, making it the better-rated option in our comparison.
What is the difference between Amplitude and PostHog?▼
Amplitude: Amplitude is a product analytics platform that tracks user behaviour across a product, with AI assistance for analysis, experiments and feedback. PostHog: PostHog is an open-source product analytics platform that combines event analytics, session replay, feature flags, A/B testing and error tracking in one tool for product and engineering teams.
Is Amplitude or PostHog more affordable?▼
Amplitude starts at €0/mo, PostHog starts at €0/mo. Check the comparison table above for current pricing.
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