Available in Cydia store, AppAnalytics does exactly what you ask it to do when it comes to tracking time spent on an application. It efficiently tracks when you make use of an application, how long you use an application and how many times you launch an application.
At the end of the month, AppAnalytics, which is a jailbroken application, generate a report for the user to let him/her know the most popular application in a month depending upon its usage.
Almost all of have some less used or least popular application that are good just to drain the iPhone’s battery. These applications should be deleted. In this area, AppAnalytics offers a very handy way to decide which application you need most or which application you should delete from your iPhone.
If you are using a JailBroken iPhone, you can download AppAnalytics from Cydia store for $0.99.