Optimizely vs VWO
Optimizely
Enterprise experimentation platform spanning client-side web testing and server-side feature experimentation, sold within a broader digital experience suite.
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
| Optimizely | VWO | |
|---|---|---|
| Pricing model | enterprise | paid |
| Pricing notes | Quote-based; Optimizely publishes no list prices — every plan is individually packaged, and Web Experimentation and Feature Experimentation are licensed separately. | 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 | No | No |
| Self-hostable | No — SaaS; the open-source Optimizely Agent can run in your infrastructure for server-side flag evaluation, but the platform cannot. | No |
| Categories | Experimentation | Experimentation, Session replay |
| Who it's for | measurement managers, marketing managers, implementation engineers | marketing managers, measurement managers, agency partners |
| Integrations listed | 5 | 15 |
Directory entries last updated: Optimizely 2026-07-18 · VWO 2026-07-18.
In brief
Optimizely — Enterprise experimentation platform spanning client-side web testing and server-side feature experimentation, sold within a broader digital experience suite. Pricing: enterprise. Quote-based; Optimizely publishes no list prices — every plan is individually packaged, and Web Experimentation and Feature Experimentation are licensed separately. Self-hosting: No — SaaS; the open-source Optimizely Agent can run in your infrastructure for server-side flag evaluation, but the platform cannot.. Listed integrations: google-analytics-4, adobe-analytics, segment, amplitude, google-tag-manager.
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 entry lists implementation engineers in "who it's for"; VWO's does not
- its pricing model is paid, where Optimizely is enterprise
- you also need Session replay — not a listed category for Optimizely
- its entry lists agency partners in "who it's for"; Optimizely's does not
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