Preview Submissions is a Gravity Forms add-on that shows users all their answers before they submit, so they can check them. This is helpful on long forms.
Install Preview Submissions
Go to Content > Gravity Forms.
Click Perks, find Preview Submissions, then click Install and Activate.
Add the Preview to Your Form
Open the form and add an HTML block at the end. Click Standard fields and drag out an HTML block.
In the HTML block settings, open Advanced, then General.
Click the small dropdown to the right of Content and choose All Submitted Fields. This adds {all_fields} to the content, which shows all of the user's answers before they submit.
Save the form.
