Microsoft Clarity vs PostHog
Microsoft Clarity
Microsoft's free session replay and heatmap tool with no traffic caps, for websites and mobile apps.
Full directory entry →PostHog
Open-source platform bundling product analytics, session replay, feature flags, experiments, and surveys on a single ClickHouse-backed event store.
Full directory entry →Facts, side by side
| Microsoft Clarity | PostHog | |
|---|---|---|
| Pricing model | free | freemium |
| Pricing notes | Free forever with no traffic limits and no sampling — no paid tier exists; Microsoft's terms allow it to use collected data to improve its products and models. Recordings are retained 30 days (favorites and a random sample up to 9 months). | Usage-based per product with monthly free allowances on Cloud (1M analytics events, 5K replays, 1M flag requests, 1.5K survey responses); per-unit rates fall with volume and anonymous events are billed cheaper than identified ones. The open-source Docker deploy is free. |
| Open source | No | Yes |
| Self-hostable | No | Partial — A Docker Compose hobby deploy is supported at small scale; large self-hosted instances are no longer sold or supported as a paid product. |
| Categories | Session replay | Product analytics, Session replay, Experimentation |
| Who it's for | marketing managers, agency partners, measurement managers | implementation engineers, data engineers, measurement managers |
| Integrations listed | 2 | 5 |
Directory entries last updated: Microsoft Clarity 2026-07-18 · PostHog 2026-07-18.
In brief
Microsoft Clarity — Microsoft's free session replay and heatmap tool with no traffic caps, for websites and mobile apps. Pricing: free. Free forever with no traffic limits and no sampling — no paid tier exists; Microsoft's terms allow it to use collected data to improve its products and models. Recordings are retained 30 days (favorites and a random sample up to 9 months). Self-hosting: No. Listed integrations: google-analytics-4, google-tag-manager.
PostHog — Open-source platform bundling product analytics, session replay, feature flags, experiments, and surveys on a single ClickHouse-backed event store. Pricing: freemium. Usage-based per product with monthly free allowances on Cloud (1M analytics events, 5K replays, 1M flag requests, 1.5K survey responses); per-unit rates fall with volume and anonymous events are billed cheaper than identified ones. The open-source Docker deploy is free. Self-hosting: Partial — A Docker Compose hobby deploy is supported at small scale; large self-hosted instances are no longer sold or supported as a paid product.. Listed integrations: segment, rudderstack, bigquery, snowflake, hightouch.
Which one, when
Derived mechanically from the structured facts above — deltas only, not an editorial verdict. Where the facts tie, read both entries.
- its pricing model is free, where PostHog is freemium
- its entry lists marketing managers and agency partners in "who it's for"; PostHog's does not
- you want an open-source codebase — Microsoft Clarity is not open source
- you need at least partial self-hosting — Microsoft Clarity offers none
- you also need Product analytics, Experimentation — not a listed category for Microsoft Clarity
- its entry lists implementation engineers and data engineers in "who it's for"; Microsoft Clarity's does not
Also compare
MICROSOFT CLARITY VS: Fullstory · Hotjar · LogRocket
POSTHOG VS: Amplitude · Fullstory · GrowthBook · Heap · Hotjar · LogRocket · Mixpanel · Optimizely · RudderStack · Segment · Snowplow · Statsig · VWO