Compare pricing, deployment, product fit, integrations, and capabilities side by side.
Catalog capabilities may require a paid plan, add-on or hosted edition. “Not listed” means unverified here, not unavailable. Confirm the exact edition, usage limits and privacy settings.
Starting prices use different billing periods and usage units. Compare the same traffic, events, retention and seats.
Choose Microsoft Clarity ifWebsite owners, marketers, and product teams that need free session replay and heatmaps
Important considerations: Clarity is vendor-hosted and uses cookies. Teams must review consent and data policies; it emphasizes qualitative behavior analysis rather than replacing a complete first-party analytics stack.
Choose PostHog ifDevelopers and product teams who want analytics, replay, experimentation, and feature delivery in a single toolchain
Important considerations: Each cloud product is metered separately. The free MIT self-hosted deployment is officially unsupported, with no customer support or guarantees. Only free-plan features are available there; paid-plan features are Cloud-only.
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| Attribute | Microsoft Clarity | PostHog |
|---|---|---|
| Overview | Microsoft's free behavior analytics service for websites and mobile apps, with always-on session recordings, click and scroll heatmaps, smart events, frustration signals, and Copilot-powered summaries. | A product and web analytics platform for developers that combines usage analytics, session replay, feature flags, experiments, surveys, and data tooling in one stack, with both cloud and self-hosted deployment options. |
| Pricing | Free forever with no traffic limits; unlimited heatmaps, websites, and team members are included | Cloud product analytics includes 1M events/month free, then starts at $0.00005 per event; other products have separate usage-based free tiers |
| Deployment | Vendor-hosted cloud | Self-hosted and hosted options |
| Best for | Website owners, marketers, and product teams that need free session replay and heatmaps | Developers and product teams who want analytics, replay, experimentation, and feature delivery in a single toolchain |
| Operator | Microsoft Corporation Independent public company | PostHog Inc. Independent private company |
| Company base | Redmond, United States · United States | Distributed organization |
| Organization scale | 228,000 employees · operator, as of 30 Jun 2025 | 215 team members · operator, as of 13 Aug 2026 |
| Recent direction | marketing attribution Recent official evidence shows a focus on marketing attribution. | AI-assisted analysis Recent official evidence shows a focus on AI-assisted analysis. |
| Key features |
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| Important considerations | Clarity is vendor-hosted and uses cookies. Teams must review consent and data policies; it emphasizes qualitative behavior analysis rather than replacing a complete first-party analytics stack. | Each cloud product is metered separately. The free MIT self-hosted deployment is officially unsupported, with no customer support or guarantees. Only free-plan features are available there; paid-plan features are Cloud-only. |
| Integrations | Google Analytics, Google Ads, WordPress, Shopify | Slack, Zapier, Segment |
| Fact check | We checked this information against official vendor sources on 2026-08-08. | We checked this information against official vendor sources on 2026-09-30. |
This matrix shows capabilities recorded in our catalog. Not listed means we have not confirmed the capability here. Check the linked vendor sources for plan, deployment, and usage limits.
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| Attribute | Microsoft Clarity | PostHog |
|---|---|---|
| A/B testing | Not listed | Listed |
| AI insights | Listed | Listed |
| App analytics | Listed | Listed |
| Audience insights | Listed | Listed |
| Behavior analytics | Listed | Listed |
| CCPA compliant | Listed | Not listed |
| Cohort analysis | Not listed | Listed |
| Cross-device tracking | Listed | Not listed |
| Custom reports | Not listed | Listed |
| Data export | Listed | Listed |
| Data ownership | Not listed | Listed |
| E-commerce tracking | Not listed | Listed |
| Enterprise | Not listed | Listed |
| Error tracking | Not listed | Listed |
| Event tracking | Listed | Listed |
| Free plan | Listed | Listed |
| Funnels | Not listed | Listed |
| GDPR compliant | Listed | Listed |
| Goals | Listed | Listed |
| Heatmaps | Listed | Listed |
| Integrations | Listed | Listed |
| Open source | Not listed | Listed |
| Real-time data | Listed | Listed |
| Retention analytics | Not listed | Listed |
| Revenue tracking | Not listed | Listed |
| Self-hosted | Not listed | Listed |
| Session recordings | Listed | Listed |
| Surveys | Not listed | Listed |
| User segments | Listed | Listed |