PostHog vs Statsig
PostHog
Open-source platform bundling product analytics, session replay, feature flags, experiments, and surveys on a single ClickHouse-backed event store.
Full directory entry →Statsig
Feature flags, experimentation, and product analytics built on one event stream, with an optional warehouse-native deployment.
Full directory entry →Facts, side by side
| PostHog | Statsig | |
|---|---|---|
| Pricing model | freemium | freemium |
| Pricing notes | 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. | Free tier includes unlimited feature-flag/config checks, 2M analytics events, and 50K session replays per month with 1-year retention; Pro from $150/mo with 5M events included and $0.05 per 1K events overage; enterprise (incl. warehouse-native) custom-quoted. |
| Open source | Yes | No |
| Self-hostable | 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. | Partial — SaaS control plane; warehouse-native mode runs metric computation inside your own Snowflake, BigQuery, or Databricks. |
| Categories | Product analytics, Session replay, Experimentation | Experimentation, Product analytics, Session replay |
| Who it's for | implementation engineers, data engineers, measurement managers | implementation engineers, data engineers, measurement managers |
| Integrations listed | 5 | 7 |
Directory entries last updated: PostHog 2026-07-18 · Statsig 2026-07-18.
In brief
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.
Statsig — Feature flags, experimentation, and product analytics built on one event stream, with an optional warehouse-native deployment. Pricing: freemium. Free tier includes unlimited feature-flag/config checks, 2M analytics events, and 50K session replays per month with 1-year retention; Pro from $150/mo with 5M events included and $0.05 per 1K events overage; enterprise (incl. warehouse-native) custom-quoted. Self-hosting: Partial — SaaS control plane; warehouse-native mode runs metric computation inside your own Snowflake, BigQuery, or Databricks.. Listed integrations: segment, rudderstack, mparticle, bigquery, snowflake, databricks, redshift.
Which one, when
Derived mechanically from the structured facts above — deltas only, not an editorial verdict. Where the facts tie, read both entries.
- you want an open-source codebase — Statsig is not open source
No structural edge in the directory facts — the differences are qualitative. Read the full entry.
Also compare
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STATSIG VS: Amplitude · GrowthBook · Optimizely · VWO