moallemi

the Advanced User Agent Displayer plugin displays the Browser and the operating system of people who commnet on your blog. 
Currently Support for Desktop and moblie operationg systems and browsers. 
Browsers: Internet Explorer, Opera, Firefox, Safari, Chrome, Epiphany, Avant, Maxthon, Konqueror and … 
Platform: Windows (2000, XP, Vista, 7), Linux, Mac, iPhone and …
What’s New in version 2.7.5.2
<pre><code>* Added support for wordpress 4.5
</code></pre>
Translations
<ul>
<li>Persian – <a href="http://www.moallemi.ir/" rel="nofollow ugc">Reza Moallemi</a></li>
<li>French – <a href="http://www.wptrads.fr/" rel="nofollow ugc">Wolforg</a></li>
<li>German – <a href="http://ppfeufer.de" rel="nofollow ugc">Pfeufer</a></li>
</ul>

Advanced User Agent Displayer

Hello dear,
This plugin broke my site. From Author box description to footer </html> everything disappeared in source code. 
Regards,
Gulshan

Broke my site

This wordpress plugin adds user agent information to your blog comments by adding browser and platform icons and lets visitors know the user agent of  …

Louis

Super Browser Detector adds PHP user agent information to the body class to help target specific devices, browsers, and operating systems with CSS.
Major features in User Agent Body Class include:
<ul>
<li>Adds user browser and operating system information as a string to the body class.</li>
</ul>

Super Browser Detector

License: GPLv2 or later Super Browser Detector adds PHP user agent information to the body class

Advanced User Agent Displayer vs Super Browser Detector