So just how is your App doing? Got calls on your API? How many? StatHat API makes it possible to answer these types of questions statistically and to chart the data to pick out trends and patterns. Seeing is comprehending.
Check-in app Gowalla puts a fun twist on location sharing by helping its users discover wonderfully-designed virtual items that can be found, swapped, and dropped all over the place. Developer Ben Dodson used the Gowalla API to put together Wallabee Travel Edition.