Fumiki Takahashi

Hametuha INC.

This plugin add new custom post type ‘FAQ’. With some functionality, you can build help center for your user. 
What is help center? We collect examples at our <a href="https://github.com/hametuha/hamelp/wiki" rel="nofollow ugc">github wiki</a>.
<h4>Creating Portal</h4>
This plugin will provide…
<ul>
<li>Custom post type with single page and archive page.</li>
<li>Custom taxonomy associated to CPT.</li>
<li>Incremental search box.</li>
</ul>
You can use shortcode <code>hamelp-search</code> in page content.
<pre>[hamelp-search label='Enter your question here.'][/hamelp-search]</pre>
And you can call in your theme altenatively.
<pre>
<?php echo do_shortcode( '[hamelp-search][/hamelp-search]' ) ?>
</pre>

Hamelp

Sam Hoe

Simple modify WordPress default help content or custom post type help content. Additional one help menu for custom help guide. You also can add dashboard widget. This plugin is more for theme developer.

SH Contextual Help

Simple modify Wordpress default help content or custom post type help content. Additional one help menu for custom help guide.

Hamelp vs SH Contextual Help