PostHog vs VWO
PostHog
Open-source platform bundling product analytics, session replay, feature flags, experiments, and surveys on a single ClickHouse-backed event store.
Full directory entry →VWO
A/B testing and conversion optimization suite from Wingify that pairs client- and server-side experiments with heatmaps, recordings, and surveys.
Full directory entry →Facts, side by side
| PostHog | VWO | |
|---|---|---|
| Pricing model | freemium | paid |
| 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. | Quote-based — no public list prices. Growth/Pro/Enterprise tiers are priced per product on usage (visitor quota consumed as visitors enter tests; events-stored-per-MAU caps vary by tier). 30-day free trial with no credit card; no permanent free plan. |
| 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. | No |
| Categories | Product analytics, Session replay, Experimentation | Experimentation, Session replay |
| Who it's for | implementation engineers, data engineers, measurement managers | marketing managers, measurement managers, agency partners |
| Integrations listed | 5 | 15 |
Directory entries last updated: PostHog 2026-07-18 · VWO 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.
VWO — A/B testing and conversion optimization suite from Wingify that pairs client- and server-side experiments with heatmaps, recordings, and surveys. Pricing: paid. Quote-based — no public list prices. Growth/Pro/Enterprise tiers are priced per product on usage (visitor quota consumed as visitors enter tests; events-stored-per-MAU caps vary by tier). 30-day free trial with no credit card; no permanent free plan. Self-hosting: No. Listed integrations: google-analytics-4, google-tag-manager, segment, mixpanel, adobe-analytics, amplitude, heap, rudderstack, tealium-iq, mparticle, hubspot, bigquery, snowflake, fullstory, microsoft-clarity.
Which one, when
Derived mechanically from the structured facts above — deltas only, not an editorial verdict. Where the facts tie, read both entries.
- its pricing model is freemium, where VWO is paid
- you want an open-source codebase — VWO is not open source
- you need at least partial self-hosting — VWO offers none
- you also need Product analytics — not a listed category for VWO
- its entry lists implementation engineers and data engineers in "who it's for"; VWO's does not
- its entry lists marketing managers and agency partners in "who it's for"; PostHog's does not
Also compare
POSTHOG VS: Amplitude · Fullstory · GrowthBook · Heap · Hotjar · LogRocket · Microsoft Clarity · Mixpanel · Optimizely · RudderStack · Segment · Snowplow · Statsig
VWO VS: GrowthBook · Hotjar · Optimizely · Statsig