Fullstory vs PostHog
Fullstory
Autocapture-first digital experience analytics that records and indexes every interaction for session replay, funnels, and frustration signals.
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
| Fullstory | PostHog | |
|---|---|---|
| Pricing model | enterprise | freemium |
| Pricing notes | Free plan (30,000 sessions/month, 12 months retention, up to 10 users); paid Business, Advanced, and Enterprise tiers are quote-based on session volume. | 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 | Product analytics, Session replay, Experimentation |
| Who it's for | measurement managers, marketing managers, implementation engineers | implementation engineers, data engineers, measurement managers |
| Integrations listed | 6 | 5 |
Directory entries last updated: Fullstory 2026-07-18 · PostHog 2026-07-18.
In brief
Fullstory — Autocapture-first digital experience analytics that records and indexes every interaction for session replay, funnels, and frustration signals. Pricing: enterprise. Free plan (30,000 sessions/month, 12 months retention, up to 10 users); paid Business, Advanced, and Enterprise tiers are quote-based on session volume. Self-hosting: No. Listed integrations: segment, rudderstack, amplitude, mixpanel, bigquery, snowflake.
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 entry lists marketing managers in "who it's for"; PostHog's does not
- its pricing model is freemium, where Fullstory is enterprise
- you want an open-source codebase — Fullstory is not open source
- you need at least partial self-hosting — Fullstory offers none
- you also need Experimentation — not a listed category for Fullstory
- its entry lists data engineers in "who it's for"; Fullstory's does not
Also compare
FULLSTORY VS: Heap · Hotjar · LogRocket · Microsoft Clarity
POSTHOG VS: Amplitude · GrowthBook · Heap · Hotjar · LogRocket · Microsoft Clarity · Mixpanel · Optimizely · RudderStack · Segment · Snowplow · Statsig · VWO