Amer Melebari

the idea of the plugin from <a href="http://wpaon.com/?p=48" rel="nofollow ugc">this post</a>
bascally the plugin generats two functions you can use them in your theme
the functions are: 
1. comments_number_ar(‘لا توجد تعليقات’, ‘تعليق واحد’, ‘تعليقان’, ‘% تعليقات’, ‘% تعليق’ ); 
2. comments_popup_link_ar(‘لا توجد تعليقات’, ‘تعليق واحد’, ‘تعليقان’, ‘% تعليقات’, ‘% تعليق’ );
the functions are similar to functions comments_number () and comments_popup_link () 
I just edit them to be correct with Arabic grammare.
<ul>
<li>For more information http://6efy.com/blog/?page_id=2222</li>
</ul>

Arabic Comments Number

this plugin allow you to display the number of comments with Arabic grammar

Mario Peshev

DevriX

DX Category Reports is a simple plugin that builds simplified timeline reports for your blogging or content marketing efforts over time.
The plugin will provide a report of the number of published posts month by month, grouped by a category. It’s lightweight and flexible – check out the Screenshots tab.

DX Category Reports

A simple plugin for building a content marketing report for each category per month.

Arabic Comments Number vs DX Category Reports