ClickHouse
An open-source database built for speed and scale
PostHog
The open source product OS
Updated February 2026
| ClickHouse | PostHog | |
|---|---|---|
| Rating | 5.0★ | 5.0★ |
| Reviews | 26 | 172 |
| Pros | 3 | 17 |
| FactScore™ | 71.6 | 111.7 |
FactScore™ Comparison
FactScore™ weighs both quality (rating) and popularity (reviews) for a fairer ranking than stars alone.
Pros & Cons
Only in ClickHouse — Pros
Fast performance Real-time analytics ScalabilityBoth tools — Pros
—Only in PostHog — Pros
Session recording Detailed analytics Open source Developer-friendly Easy integration Feature flags Customizable dashboards Generous free tier Self-hosting Event tracking A/B testing Community driven Excellent support Real-time insights Privacy-oriented Clean UI HeatmapsOnly in ClickHouse — Cons
—Both tools — Cons
—Only in PostHog — Cons
UI could be more polished Complex setup Incomplete documentationDetails
| ClickHouse | PostHog | |
|---|---|---|
| Categories | Data analysis tools, Databases and backend frameworks, Analytics Databases | Data analysis tools, Website analytics, A/B testing tools |
| Platforms | Web | Web |
| Became Popular | November 15, 2016 | November 17, 2020 |
| Website | clickhouse.com | posthog.com |
Who Should Pick Which?
Choose ClickHouse if...
- Fast performance
- Real-time analytics
- Scalability
Choose PostHog if...
- Session recording
- Detailed analytics
- Open source
With a FactScore™ of 71.6 vs 111.7, PostHog leads in community reception. ClickHouse uniquely offers Fast performance and Real-time analytics, while PostHog stands out for Session recording and Detailed analytics.
What Users Say
ClickHouse
After much deliberation, we decided to build our analytics engine on top of Clickhouse. Our engineering team loved the ease of deployments across environments, data compression, and fast responses.
ClickHouse saves us tons of gigabytes on disk space and delivers incredible performance. Without it, we wouldn’t be able to manage such a large volume of data efficiently. However, we’re still expl...
Powering all our dashboards with a blazingly fast, columnar database that makes querying and visualizing large volumes of LLM observability data feel instant.
PostHog
PostHog has been absolutely instrumental in the development and refinement of Acedit. As an open-source product OS, it provides us with deep insights into how job seekers are actually using our AI ...
PostHog has been essential for Jupitrr AI in tracking data and improving user experience. The platform's page-on-page conversion insights help us understand user behavior in detail, while the scree...
PostHog allowed us to observe how early users interacted with Source's onboarding flow. We found that there were some confusing steps in the onboarding which we removed to smooth out the activation...
Related Comparisons
Frequently Asked Questions
Which is better, ClickHouse or PostHog?
Based on FactScore™, PostHog leads with a score of 111.7 vs 71.6. PostHog has a higher rating of 5.0★ compared to 5.0★.
What are the pros of ClickHouse compared to PostHog?
ClickHouse uniquely offers: Fast performance, Real-time analytics, Scalability.
What are the pros of PostHog compared to ClickHouse?
PostHog uniquely offers: Session recording, Detailed analytics, Open source, Developer-friendly, Easy integration.
Is ClickHouse better rated than PostHog?
ClickHouse is rated 5.0★ from 26 reviews. PostHog is rated 5.0★ from 172 reviews.
What is the FactScore™ of ClickHouse and PostHog?
FactScore™ weighs rating and review volume together. ClickHouse scores 71.6 and PostHog scores 111.7.
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