For example, another useful application would be “your personal prediction tracker”, where you enter various short-term predictions, your confidence interval, and then enter the actual result. You can classify each prediction and then see if you are over- or under-confident in certain areas. (I remember seeing a website that does something similar, but can’t find it now.)
You’re probably thinking of PredictionBook.
May be...The interface looks different, but, regardless, it’s close enough to be used as an example. Thanks!