It is always handy to see a dashboard full of sample data before starting your analytics adventure.
This plugin, when installed, provides an easy to use data population mechanism you can take advantage of to generate sample data for your currently active application. It populates session, custom event, crash, in-app purchase, push notifications and user profiles related data, so that you can have an understanding of how reporting will look like when you go live.
Note that when you run data population, it will warn you beforehand since it will populate data for the current app. Therefore please be cautious not to populate data for any production applications!