Alex Mills

Now you too can show the <a href="https://wordpress.org/download/counter/" rel="ugc">WordPress download counter</a> on your website! This plugin adds a widget to your blog that shows the current download count and even refreshes the count every 15 seconds automatically.
Requirements
<ul>
<li>PHP 5.2.0 or newer (PHP4 is dead anyway)</li>
<li>WordPress 2.8 or newer</li>
</ul>

WordPress Download Counter

Allows you to show the download counter for WordPress on your site.

James Irving-Swift

Electric Studio

javorszky

Matthew Burrows

View how many people have downloaded what files from your site.
Features include:
<ul>
<li>Allows you to specify which file types to track.</li>
<li>View top ten downloads.</li>
<li>View this month’s downloads.</li>
<li>View this week’s downloads.</li>
<li>Use shortcode or a php function to display amount of times downloaded in the frontend of your site.</li>
</ul>

WordPress Download Counter vs Electric Studio Download Counter