Paul Gregory

Adds three widgets – “Text/List”, “Text/List (If Logged In)” and “Text/List (Not Logged In)”. These can be used much like the normal Text widget, except two of them only display if the condition is met.
Potential Uses: 
* Add a link to a Register page, along with some text promoting registration (for example on a site with the bbPress plugin) 
* Display adverts to users who are not logged in 
* Display useful links to users who are logged in. 
* Display a nice list to everyone.
Because the widgets are separate, you can have the logged-in widget in a different place to a logged-out widget. You don’t even have to have pairs of widgets.
Unlike the normal Text widget which just has a toggle for paragraph on/off, this widget has four display options:
<ul>
<li>No formatting</li>
<li>Add paragraphs</li>
<li>Bullet list (ul)</li>
<li>Numbered list (ol)</li>
</ul>
The list options are useful if you are adding a number of links – simply add each one on a new line and they’ll be turned into a bullet. Please note that this plugin adds no CSS. Often themes style the lists within a widget to make menus look nice, so your theme may (for example) prevent numbers from showing. See FAQ.
You may find that the Text/List widget is useful even without the logged-in / logged-out conditional.

Logged In Conditional Text Widget

Adds text/list widgets - one only shows if user is logged in, and the other only shows if a user is not logged in. A third shows regardless.

shazdeh

With this shortcode you can take control of where the content is displayed.
<h4>Usage</h4>
You can use all the <a href="https://codex.wordpress.org/Conditional_Tags" rel="nofollow ugc">conditional tags</a> WordPress provides. Checkout examples below.
Show text only on the homepage: 
 [if is_front_page] The text [/if]
Show text only on the About page of the site: 
 [if is_page=”about”] The text [/if]
Show only on the category archive view: 
 [if is_category] The text [/if]
You can add “not_” before the conditional tag to reverse the logic, example: 
Show on all pages of the site except the homepage: 
 [if not_is_front_page] The text [/if]
<h4>OR</h4>
Using multiple parameters, the content is displayed when either of the conditions are met (“OR” comparison), for example, show text on both category and tag archive pages: 
 [if is_category is_tag] The text [/if]
<h4>AND</h4>
To set multiple conditions you can nest the shortcode, for example show text only on homepage AND if the user is logged in: 
 [if is_user_logged_in][if is_front_page] The text [/if][/if]
Show a link to wordpress.org site, only on single post pages and only on mobile devices: 
 [if wp_is_mobile][if is_single] <a href="https://wordpress.org/" rel="ugc">WordPress</a> [/if][/if]
<h4>has_term_{taxonomy}</h4>
You can use this to check if the current post in the loops belongs to a custom term in the desired taxonomy. See: https://codex.wordpress.org/Function_Reference/has_term
Example, check if current post has the “jazz” term in the “genre” taxonomy: 
 [if has_term_genre=”jazz”] The text [/if]

Conditional Tags Shortcode

A shortcode to display content based on context.

Logged In Conditional Text Widget vs Conditional Tags Shortcode