What is a statistical significance?

A measure of the probability that the observed difference between two variations in a test is not due to random chance. A common threshold is 95%, meaning there is only a 5% chance the results are a fluke.

Who uses one?

Growth teams running experiments

What does it cost?

Pricing varies. The cheapest provider in our Top 11 starts around $—/mo. See the cheapest providers ranked.

How do I pick one?

Read the full methodology for our 9.4-point scoring framework, then look at the canonical The 11 Best A/B Testing Tools. If you want a slice of the ranking by price, fit, or compliance, jump to: cheapest · highest-rated · fastest onboarding.

Source: Top 11 The 11 Best A/B Testing Tools, verified June 13, 2026.