WhizKins

WPSimpleInsert is a plugin to insert custom code in your blog posts. It includes options to either add the code above 
or below post content.
Features:
<ul>
<li>Add custom HTML/PHP/JavaScript to your posts.</li>
<li>Ability to add custom code above or below post content.</li>
<li>Options to hide the code from certain pages like the home page and category and archives pages.</li>
</ul>

WP Simple Insert

A plugin to insert custom HTML or PHP code in your posts. Includes options to insert before or after post content.

BCS Website Solutions

rizwanchaudhry

Insert Code allows you to insert code before or after the contents of your post or page. It also allows you to insert code after Nth paragraph () of your post or page contents. This saves you the hard work of manually entering code in your post files, and is very useful for showing ads or other content in pages or posts, including AdSense or other ad code.
Insert Code provides an option to show custom code on all pages and posts, or on selected categories only.
Insert Code automatically adds a "Categories" section to Pages of your WordPress dashboard, to allow you to select the category(ies) on which you want to insert the code that you have saved in the Insert Code plugin.
If you want to hide the code from all posts or pages then you can easily uncheck the post type in the Insert Code setting pages.
If you would like to use different codes for desktop and mobile sites, please get our <a href="https://www.bcswebsitesolutions.com/downloads/insert-code-pro/" rel="nofollow ugc">Pro Version</a>

Insert Code

Allows you to insert code before or after the content and also allow you to insert code after nth paragraphs of your post or page contents.

WP Simple Insert vs Insert Code