Harshit

View/Export useful network statistics related to sites, users per site, plugins per site, themes and plugins for all the sites in a WordPress multisite network.
The features include –
<ol>
<li>Background processing for generating new statistics for the network. It allows you to safely generate stats without compromising the performance of your large multisite network.</li>
<li>Ability to fine tune batch processing settings.</li>
<li>Protected network admin settings.</li>
<li>Notification when the stats are available.</li>
<li>D3 Visualizations</li>
<li>Generates set of CSV files corresponding to different types of stats.</li>
</ol>

WP Network Stats

View/Export network statistics related to users & plugins per site, themes, plugins and other site stats in your multisite network.

Kalpesh Prajapati

Add tracking code on your website without hacking your theme file.
This plugin provide simple way to add your tracking code in html head or footer section of the site.
Also you can use different language. To change language you need to generate .po and .mo files.
<h4>Features</h4>
<ul>
<li>Add tracking code like Google analytics, Facebook pixel, thridpary script code to header & footer of your website.</li>
<li>Translation Compatible.</li>
</ul>

KP Tracking Code

This plugin used to add tracking code to header & footer section.

WP Network Stats vs KP Tracking Code