Soon we are going to enter into the world where we will have everything based on apps, among many of those apps Wheresmytime is an app which will tell you that how much you have spent at one place.
Its going to work by tracking your location and using GPS, nearby Wi-Fi spots, or mobile networks, with GPS giving the best accuracy. All you need to do is to mark th location to which you want to track i.e. give the name to that location, and you can see all the data of day, week, month etc.
May be it’s going to be a popular app like others because of its accuracy in information and the use of battery is also less according to its functionality.