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.

I. Kancijan

Extend your Group Field conditional logic with extra set of rules and select field value as your condition.
Supported fields: 
 – text 
 – textarea 
 – range 
 – url 
 – number 
 – select 
 – post object
A good use case is if you have multiple Field Groups displayed in the same location, but you’d like one of them to be visible only if the condition from the other group is satisfied. 
It works well with <a href="https://hookturn.io/downloads/acf-custom-database-tables/" rel="nofollow ugc">ACF Custom Database Tables</a> from Hookturn, where you might want to split one large Field Group into multiple smaller and have an organized DB.

ACF Conditional Logic Extended

Display Field Group based on a field value from another group.

Logged In Conditional Text Widget vs ACF Conditional Logic Extended