Touhidul Sadeek

<h4>Plugin Features</h4>
<ul>
<li>Easy to use.</li>
<li>Tooltip Button in Editor.</li>
<li>TinyMCE Button added for generating Shortcode.</li>
<li>Customizable.</li>
</ul>

TCBD Tooltip

This plugin will enable tooltip in your Wordpress theme.

Mehbub Rashid

Add tooltips next to Gravity Forms field labels very easily. Supports placements, themes, animations. 
Update: Now you can use shortcodes as tooltip content! 
Big Update: You can now use HTMLs in your tooltip and choose themes, animations, placements!
How to use:
<ul>
<li>Add your text to the “Tooltip Text” field while editing gravity forms fields.</li>
<li>Save changes and tooltips will appear next to label automatically in the form.</li>
</ul>

Tooltip for Gravity Forms

Work as expected!

Add tooltips next to Gravity Forms field labels very easily. Supports placements, themes, animations.

TCBD Tooltip vs Tooltip for Gravity Forms