MakerBlock

OCD Plugin Stats is a simple plugin that creates a little dashboard widget that displays the WordPress.org plugin download statistics for plugins of your choice.
If you like this plugin, <a href="https://wordpress.org/extend/plugins/ocd-plugin-stats/" rel="ugc">please give it a 5-star rating over here –></a>
This short and simple plugin won’t leave any trace in your database after it has been uninstalled. It doesn’t create extra tables, content types, or taxonomies.
And, you can always <a href="http://makerblock.com/" rel="nofollow ugc">visit my website</a> (It’s mostly about awesome open source robots, if you’re into that kinda thing).
<h3>To Do List</h3>
<ul>
<li>Include multi-language support.</li>
</ul>

OCD Plugin Stats

An easy way to monitor your plugin download statistics

Conner Tolley

A simple plugin that will send a email stating the number of unique visitors the site has had in a certain time period.

Visitor Mailer

Receive email of visitors on a daily or weekly basis, NO additional plugins or add-ons are required.

OCD Plugin Stats vs Visitor Mailer