The best conversion optimisation tools

[{"key": "testing", "label": "Testing power", "weight": 3}, {"key": "ease", "label": "Ease of use", "weight": 2}, {"key": "value", "label": "Value for money", "weight": 2}, {"key": "targeting", "label": "Targeting", "weight": 2}, {"key": "analytics", "label": "Analytics", "weight": 1}]

I scored each tool on five weighted criteria: testing power (weight 3), ease of use (2), value for money (2), targeting (2) and analytics (1). Every score runs from 0 to 10, and the overall is the weighted sum out of 100, so testing power carries the most because rigorous experimentation is the spine of conversion optimisation.

Pricing and features were verified against each vendor''s own pages in June 2026 and are written in USD. Several of these pricing pages render their numbers in a browser only, or have moved to quote-on-request, so I read them in a real browser rather than trusting a thin page, and I have said plainly where a price is now quote-only or where a published figure is the last reliable one. Where a free tier exists I said so, and where it is only a trial rather than a standing free plan I made that distinction clear.

Honesty note: three of these tools pay us a commission , VWO, OmniConvert and Outgrow, all through the same affiliate network; Justuno does not. You can see that the relationships did not buy position: the rank-1 tool and the rank-4 tool are both affiliated, and the unaffiliated tool sits in the middle exactly where its fit puts it. The ranking follows the research. If a relationship changes, the disclosure changes with it, and the ranking does not move because of it.