Amplitude vs PostHog (2026): Which Product Analytics Platform Is Best?
By Alex Chen, SaaS Analyst · Updated April 11, 2026 · Based on hands-on product analytics testing
30-Second Answer
Choose PostHog if you want an all-in-one open-source platform with product analytics, session replay, feature flags, and A/B testing — all with a generous free tier and no vendor lock-in. Choose Amplitudeif you're a large enterprise needing advanced behavioral cohorts, predictive analytics, and enterprise-grade data governance. PostHog wins 5-3 overall, but Amplitude's deep analytics capabilities are unmatched at enterprise scale.
Our Verdict
PostHog
- Open source with self-hosting option
- Analytics + session replay + feature flags + A/B testing in one
- Generous free tier (1M events/month)
- Behavioral cohorts less advanced than Amplitude
- No predictive analytics or AI forecasting
- Enterprise support less mature
Deep dive: PostHog full analysis
Features Overview
PostHog is the only open-source product analytics platform that bundles analytics, session replay, feature flags, A/B testing, and surveys into one product. Being open source (MIT license) means you can self-host for full data control — critical for privacy-conscious companies in EU/healthcare. Over 70,000 companies use PostHog, including Y Combinator startups and growing tech companies.
Pricing Breakdown (April 2026)
| Plan | Price | Key Features |
|---|---|---|
| Free | $0 | 1M events/mo, 5K sessions, 1M flags |
| Usage-based | From $0.00045/event | Unlimited events, all features |
| Self-hosted | $0 | Full platform, your infrastructure |
Who Should Choose PostHog?
- Startups wanting all-in-one analytics without tool sprawl
- Privacy-conscious teams needing self-hosted analytics
- Product engineers who want feature flags + analytics together
- Companies wanting to avoid enterprise vendor lock-in
Amplitude
- Advanced behavioral cohorts and segmentation
- Predictive analytics with AI/ML
- Enterprise data governance and compliance
- No built-in session replay (add-on)
- Feature flags require Amplitude Experiment (paid)
- Expensive at scale vs PostHog
Deep dive: Amplitude full analysis
Features Overview
Amplitude is the enterprise gold standard for behavioral product analytics. Its advanced cohort builder, funnel analysis, and retention charts are deeper than any competitor. The Amplitude Experiment platform (separate product) adds feature flags and A/B testing. Over 2,000 enterprise customers use Amplitude, including 26 of the Fortune 100. Where Amplitude truly shines is predictive analytics — identifying users likely to churn or convert before it happens.
Pricing Breakdown (April 2026)
| Plan | Price | Key Features |
|---|---|---|
| Starter | $0 | 10M events/mo, core analytics |
| Growth | ~$49/mo | Advanced analytics, behavioral cohorts |
| Enterprise | Custom | Predictive analytics, data governance, SSO |
Who Should Choose Amplitude?
- Enterprises with 100K+ MAUs needing deep behavioral analysis
- Product teams requiring predictive churn and conversion models
- Organizations with strict data governance requirements
- Companies already invested in the Amplitude ecosystem
Side-by-Side Comparison
| Category | Amplitude | PostHog | Winner |
|---|---|---|---|
| Pricing | Free 10M events/mo; Growth ~$49/mo | Free 1M events/mo; self-host free unlimited | ✔ PostHog |
| Open Source | No — proprietary | Yes — MIT license, self-hostable | ✔ PostHog |
| Session Replay | Add-on (extra cost) | Built-in — included free | ✔ PostHog |
| Behavioral Cohorts | top-tier — advanced segmentation + AI | Good — improving rapidly | ✔ Amplitude |
| Feature Flags | Amplitude Experiment (paid add-on) | Built-in — free | ✔ PostHog |
| A/B Testing | Amplitude Experiment (paid add-on) | Built-in experiments — free | ✔ PostHog |
| Predictive Analytics | AI-powered churn and conversion prediction | Not available | ✔ Amplitude |
| Data Governance | Enterprise-grade schema management | Growing — good for smaller teams | ✔ Amplitude |
● Amplitude wins 3 · ● PostHog wins 5 · Based on 6,000+ user reviews
Which do you use?
Who Should Choose What?
→ Choose PostHog if:
You want all-in-one product tooling (analytics + session replay + feature flags + experiments) with no vendor lock-in. PostHog's open-source model and generous free tier make it the default choice for privacy-conscious startups and product engineering teams. Self-hosting gives full data control.
→ Choose Amplitude if:
You're at a growth-stage or enterprise company needing advanced behavioral cohort analysis, predictive analytics, and enterprise data governance. Amplitude is the benchmark for deep product analytics at scale with 100K+ monthly active users.
→ Consider neither if:
You just need basic website analytics (page views, traffic sources) — Google Analytics 4 is free and sufficient. For simple event tracking without behavioral analysis, Plausible ($9/mo) or Fathom is lighter and easier.
Best For Different Needs
Also Considered
We evaluated several other tools in this category before focusing on Amplitude vs PostHog. Here are the runners-up and why they didn't make our final comparison:
Frequently Asked Questions
Editor's Take
Honest take: PostHog has eaten Amplitude's lunch for startups and mid-market. The fact that you get analytics, session replay, feature flags, AND experiments in one free open-source tool is hard to argue with. But I've seen enterprise teams try to replace Amplitude with PostHog and struggle — Amplitude's behavioral cohorts and predictive models are genuinely better at scale. Know your stage.
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Our Methodology
We evaluated Amplitude and PostHog across 8 product analytics categories: pricing and free tier, open-source availability, session replay, behavioral cohorts, feature flags, A/B testing, predictive analytics, and data governance. We tested both with real product data across 50K+ events. We analyzed 6,000+ reviews from G2, Product Hunt, and TrustRadius. Pricing verified April 2026.
Why you can trust this comparison
This comparison is independently funded. No vendor paid for placement or influenced our scores. Ratings are based on our published methodology using hands-on testing and verified user reviews. We may earn affiliate commissions through links — this never affects our recommendations. Read our full methodology →
Data sources: Official pricing pages, G2.com, Capterra.com. Prices and ratings verified April 2026. We update our top 50 comparisons monthly. Read our methodology
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Verify Independently
Don't take our word for it. Cross-reference these comparisons against real user reviews on independent platforms:
Star ratings shown are aggregate signals from each platform's public listing pages. Click through to read individual reviews and verify our analysis. We update aggregate counts quarterly.
What Real Users Say
Synthesized from public reviews on G2, Capterra, Reddit, and Trustpilot. We update aggregate themes quarterly. Click platform badges in the section above to read individual reviews.
Last updated: . Pricing and features are verified weekly via automated tracking.