thebluecube

This plugin adds some additional features to the Gravity Forms plugin:
<ul>
<li>Input ID change (if the form has not received any entries yet)</li>
<li>Advanced input validations</li>
<li>Form access control</li>
<li>Advanced conditional logic shortcode to be used in email notifications</li>
</ul>
Documentation: https://thebluecube.com/wordpress-plugins/bluecube-mighty-gravity-forms/documentation/

Blue Cube Mighty Gravity Forms

This plugin adds some additional features to the Gravity Forms plugin:

socialmedialtd

A plugin developed by <a href="https://social-media.co.uk" rel="nofollow ugc">Social Media Ltd</a>, to prevent form submission when the message contains custom predefined words. Use as many stop words as you wish, and manage those easily through the settings page in the admin panel. When any WPCF7 form is submitted, textareas’ content is checked against those words, and if a hit is found, an error comes up, and the form submission is cancelled.

WPCF7 Stop words

A plugin developed by Social Media Ltd, to prevent form submission when the message contains custom predefined words.

Blue Cube Mighty Gravity Forms vs WPCF7 Stop words