Feature checklists rarely decide anything. What decides it is the pricing metric, who has to write the tests, and which limitation you can live with.
Entry price
Quote on request
Quote onlyFrom $99 per month (indicative, by tested visitors)
Trial onlyWhat drives the bill
The metric that actually scales your invoice.
Enterprise annual contracts, commonly in the tens of thousands and up. Priced by traffic and modules.
Priced only on tested traffic — unlimited experiments, domains and users at every tier.
Free tier
No free tier.
15-day trial.
Open source
Self-hostable
No-code authoring
Languages
Platforms
Fits teams
Adoption
Widely used
Optimizely · since 2010
Emerging
Convert Insights · since 2010
Strengths
Limitations
Best for
Large marketing organisations running continuous experimentation on high-traffic sites.
Mid-sized e-commerce teams that want unlimited client-side testing with clean privacy handling.
All of these integrate with: Segment, Google Analytics.
Pricing last reviewed August 2026 and is indicative only — confirm on each vendor’s own page.