Google Analytics plugin allows you to track store visits and conversions by simply adding the tracking code to all the pages of your store.
Google Analytics provides you with insights into your audience: geo, interests, visited pages, conversions.
Before activating the plugin, please create your Google account and get your personal tracking code.
Installation instructions:
Please find more information about how to install plugins here.
Source code:
The plugin is provided absolutely for free and includes source code.