Statistique is a very basic app, providing real time information about how your iOS device is running with no additional options or tools. That is not a bad thing, especially since the app never promises to provide any more than this, but it does limit the uses of the app and the number of people who will initially need it.
Statistique is basically a memory manager. Open it and it will show you the real time statistics for how much memory is available, how much is being used, and how much is active. This helps you to uncover how many more apps you can open for multitasking, and discover why your device is slowing down--great for developers as well as power users. A second screen also provides accurate battery measurements and system version information. This is it, though. You cannot change anything, edit what appears on screen, or check CPU usage or wireless data. It's a very limited dashboard for your memory statistics and while this is useful for some people, it has its limitations.
If you need to see the real time statistics for how much memory the apps on your iOS device are using, then Statistique is a good app for you. For everyone else, there are more robust dashboards available with additional information related to how you use your device.