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 Ackee ifDevelopers and website owners who need simple traffic and event reporting on infrastructure they control.
Important considerations: Current releases require Node.js 24 or newer and MongoDB. Your team owns upgrades, availability and security; evaluate its aggregate reports against your funnel and replay requirements.
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.
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| Attribute | Ackee | Microsoft Clarity |
|---|---|---|
| Overview | A small, self-hosted web analytics tool with cookieless traffic statistics, custom actions and a GraphQL API. You run the Node.js application and MongoDB database. | 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. |
| Pricing | Free MIT-licensed software; budget separately for hosting, backups and maintenance. No vendor-hosted subscription is listed. | Free forever with no traffic limits; unlimited heatmaps, websites, and team members are included |
| Deployment | Self-hosted | Vendor-hosted cloud |
| Best for | Developers and website owners who need simple traffic and event reporting on infrastructure they control. | Website owners, marketers, and product teams that need free session replay and heatmaps |
| Operator | Tobias Reich Independent project | Microsoft Corporation Independent public company |
| Company base | Usingen, Germany · European Union | Redmond, United States · United States |
| Organization scale | No comparable official organization-size figure was publicly disclosed. | 228,000 employees · operator, as of 30 Jun 2025 |
| Recent direction | operational reliability Recent official evidence shows a focus on operational reliability. | marketing attribution Recent official evidence shows a focus on marketing attribution. |
| Key features |
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| Important considerations | Current releases require Node.js 24 or newer and MongoDB. Your team owns upgrades, availability and security; evaluate its aggregate reports against your funnel and replay requirements. | 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. |
| Integrations | JavaScript, GraphQL, Docker | Google Analytics, Google Ads, WordPress, Shopify |
| Fact check | We checked this information against official vendor sources on 2026-09-30. | We checked this information against official vendor sources on 2026-08-08. |
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 | Ackee | Microsoft Clarity |
|---|---|---|
| AI insights | Not listed | Listed |
| App analytics | Not listed | Listed |
| Audience insights | Not listed | Listed |
| Behavior analytics | Not listed | Listed |
| CCPA compliant | Not listed | Listed |
| Cookieless | Listed | Not listed |
| Cross-device tracking | Not listed | Listed |
| Data export | Not listed | Listed |
| Data ownership | Listed | Not listed |
| Event tracking | Listed | Listed |
| Free plan | Listed | Listed |
| GDPR compliant | Not listed | Listed |
| Goals | Not listed | Listed |
| Heatmaps | Not listed | Listed |
| Integrations | Not listed | Listed |
| Open source | Listed | Not listed |
| Privacy-first | Listed | Not listed |
| Real-time data | Not listed | Listed |
| Self-hosted | Listed | Not listed |
| Session recordings | Not listed | Listed |
| User segments | Not listed | Listed |
| Web analytics | Listed | Not listed |