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PostHog vs Semaphor
PostHog provides product event analytics and feature flags; Semaphor delivers customer-facing, tenant-isolated dashboards and AI-driven reporting.
PostHogProduct analytics, session replay and feature flags
SemaphorCustomer-facing analytics for Saas appsWhich to pick
Pick PostHog if you want…
- Unified product analytics with AI assistance
- Product analytics with session replay
- Open-source code (PostHog/posthog on GitHub)
- Integrations with Stripe, GitHub or Google Ads (on PostHog's list, not Semaphor's)
Pick Semaphor if you want…
- Embedded analytics with tenant isolation
- Integrations with PostgreSQL, MySQL or Snowflake (on Semaphor's list, not PostHog's)
Side by side
- What it is
- PostHog:PostHog is an all-in-one product analytics platform with session replay, error tracking, feature flags and AI-driven insights.
- Semaphor:Semaphor provides embedded, customer-facing analytics with a governed semantic model for SaaS apps.
- Best for
- PostHog:Unified product analytics with AI assistance
- Semaphor:Embedded analytics with tenant isolation
- Who it’s for
- PostHog:Product teams and engineers who need analytics, monitoring and automated issue resolution.
- Semaphor:Product teams building SaaS apps that need per-customer analytics.
- Pricing
- PostHog:Freemium
- Semaphor:Contact sales
- Plans
- PostHog:Free $0 · Pay-as-you-go $0 per month · Platform packages $0
- Semaphor:—
- Open source
- PostHog:Yes, 40,071 GitHub stars
- Semaphor:—
- Works with
- PostHog:Stripe, GitHub, Google Ads, Postgres, HubSpot, Zendesk, Linear, Slack
- Semaphor:PostgreSQL, MySQL, Snowflake, BigQuery, ClickHouse, DuckDB, SQL Server, Amazon S3
PostHog features
- Product Analytics. Capture, store and query events with a free tier of 1 M events per month.
- Session Replay. Record user sessions (5 K free recordings) and surface dead clicks or crashes.
- Error Tracking. Collect exceptions and stack traces, grouped into actionable issues.
- Feature Flags & Experiments. Toggle features and run A/B tests with 1 M free flag requests per month.
- AI Observability. Ask natural-language questions; AI generates diagnostics and pull-request suggestions.
- Managed Data Warehouse. Store raw events, rows and logs; query via SQL or BI tools.
- Workflows & Inbox. Automated agents create PRs, prioritize findings and route tickets to GitHub, Zendesk, etc.
- Integrations. Ingest data from 120+ sources like Stripe, Postgres, HubSpot, Google Ads and more.
Semaphor features
- Single metric definition. Define each metric once in a semantic model and reuse it across all dashboards and queries.
- First-class multi-tenant security. Row, column, and connection-level security isolates each customer's data, roles, and calendars.
- Self-serve customer views. Customers can filter, drill, save views, ask plain-English questions and schedule reports without tickets.
- Agent-native BI API. AI agents like Claude and Codex can build dashboards via the MCP server using the governed model.
- Zero-dependency embed. Embed dashboards via an iframe or native SDKs for React, Vue, and Web Components.
- Live data source connections. Connect directly to PostgreSQL, MySQL, Snowflake, BigQuery, ClickHouse, DuckDB, SQL Server, Amazon S3, or REST APIs.
- Self-hostable option. Run Semaphor on your own infrastructure with Docker for GDPR/HIPAA compliance.
PostHog vs Semaphor FAQ
Is PostHog or Semaphor free?+
PostHog has a free plan and paid plans.
Is PostHog or Semaphor open source?+
PostHog is open source (PostHog/posthog on GitHub). DevHunt has no public source repository on record for Semaphor.
Do PostHog and Semaphor integrate with the same tools?+
Their integration lists don't overlap: PostHog lists Stripe, GitHub, Google Ads, Postgres and 4 more; Semaphor lists PostgreSQL, MySQL, Snowflake, BigQuery and 7 more.
On DevHunt
Based on each tool's website and DevHunt data. Details may change; check the official sites.