| Overview |
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. | Skald analyses web-server logs to distinguish visitors, AI assistants and crawlers. It is free to self-host under Elastic License 2.0, with paid hosted plans and a 30-day trial. |
| Pricing |
Cloud product analytics includes 1M events/month free, then starts at $0.00005 per event; other products have separate usage-based free tiers | Free self-hosting. Hosted Starter: $9/month or $86/year for 1 site, 1 million requests/month and 3 team members; 30-day free trial. Requests include assets and bots, not just page views. Server costs and optional AI-provider API charges are separate. |
| Deployment |
Self-hosted and hosted options | Self-hosted and hosted options |
| Best for |
Developers and product teams who want analytics, replay, experimentation, and feature delivery in a single toolchain | Site owners and agencies with access to suitable server or CDN logs who want visibility into people and automated traffic. |
| Operator |
PostHog Inc. Independent private company | Space-O Technologies Independent private company |
| Company base |
Distributed organization | Ahmedabad, Gujarat, India · Other region |
| Organization scale |
215 team members · operator, as of 13 Aug 2026 | at least 140 team members · operator, as of 26 Oct 2026 |
| Recent direction |
AI-assisted analysis Recent official evidence shows a focus on AI-assisted analysis. | platform integration Recent official evidence shows a focus on platform integration. |
| Key features |
- Self-hosted
- Session recordings
- A/B testing
- Feature flags
- Surveys
- Open source
- Real-time analytics
- Custom event tracking
- Integrations
- Data export
|
- Server-log traffic classification
- Optional in-page tracking
- Search Console and Bing reports
- Optional AI-answer monitoring with a daily cost cap
|
| 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. | Source-available, not OSI open source. Optional browser tracking adds in-page signals. AI-answer monitoring uses your provider keys and paid API samples; it does not reproduce what every app user sees. No verified hosted data-region claim. |
| Integrations |
Slack, Zapier, Segment | Google Search Console, Bing Webmaster Tools |
| Fact check |
We checked this information against official vendor sources on 2026-09-30. |
We checked this information against official vendor sources on 2026-10-26. |