8. Gravity Forms (Online calculators, quizzes, surveys, payment forms and more).

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Gravity Forms Home Page
Gravity Forms is a popular form builder plugin for WordPress. It's great for creating online calculators, quizzes, surveys, and payment forms.

After testing this plugin thoroughly, we will analyze what we like and what could be improved. If you want to know more, you can consult our full review of Gravity Forms.

Now, Gravity Forms offers a drag-and-drop interface with a clean design. The live preview is on the left, while the customization tools are on the right.

Gravity Forms drag and drop form generator
When we tested the form builder, we found that it excels in numerous use cases. For example, you can create registration forms for contests, quizzes, and surveys using their templates. Then there are 9 ready-made variants for the conversational modules.

A prominent tool is “Partial Entries”, which captures data from abandoned forms. This helps you understand why users abandoned and gives you the opportunity to re-engage.

Additionally, we like the “Dynamic Population” feature. This feature pre-populates fields when users fill out forms, helping speed up the process and reduce the chance of errors.