Run variants side by side, measure them on the goal that matters and declare a winner with statistical confidence.
Duplicate a variant, change the headline, the offer or the whole flow, and split traffic evenly or with custom weights. Each visitor always sees the same variant.
Count a conversion when a visitor leaves an email, or when they click or reach a step. One conversion per popup, never double-counted.
Give each variant a tag such as promo_first: it travels with every lead, so you can compare subscribers from each flow long after the test.
One line of code, your first campaign in minutes.