innovaxp

Get control over your content, check what your users most like with NS Like This, a plugin that allow your users to save their favorite posts, pages, categories or tags, and review it in their favorite private page, automatically created and managed. They can also add an emblem to make the like more eye-catching.
You can track if the users do click in their favorites using the favorites page. Also, they can check what other users most like, making the like more social.
The plugin also adds 3 widgets:
<ul>
<li>Most liked content</li>
<li>Latest liked content</li>
<li>Most visited liked content</li>
</ul>
Translation ready (i18n), now includes full translation to:
<ul>
<li>English (default).</li>
<li>Italian.</li>
</ul>
If you have a new translation for your language, please send us by email and we’ll add it to the package.

NS Like This

This plugin allows your users to save their favorite content, and keep track of their favorites (add or remove), other user's favorites and click …

Huseyin Berberoglu

Allows users to add favorite posts. This plugin use cookies and database for 
saving data.
<ul>
<li>If a user logged in then favorites data will saved in database instead of cookies.</li>
<li>If user not logged in data will saved in cookies.</li>
</ul>
You can choose “only registered users can favorite a post” option, if you want. 
Also there is a widget named “Most Favorited Posts”. And you can use this template 
tag for listing most favorited posts;
Most Favorited Posts
If you use WP Super Cache you must add page (which you show favorites) URI to “Accepted Filenames & 
Rejected URIs”.
If you need support <a href="https://wordpress.org/support/plugin/wp-favorite-posts" rel="ugc">create a topic on support forum</a>
Please submit your pull requests to https://github.com/hberberoglu/wp-favorite-posts

WP Favorite Posts

Allows visitors to add favorite posts. This plugin use cookies for saving data so
unregistered users can favorite a post.

NS Like This vs WP Favorite Posts