The App Store is something of a mystery when it comes to figuring out a recipe for success. In technical terms it's all over the dang place. The new appFigures app isn't going to fix this problem, but it does aim to make discovering patterns and tracking all kinds of pertinant info easier.
In essence, if you have an app on the App Store you can use appFigures to track revinue (both initial purchases and in-app purchases if there are any), adds, downloads, and even App Store reviews if you feel like torturing yourself. It's basically Analytics at your fingertips. So if yiou want to know whether Twitter promotion is worth it or if a recent sale resulted in a spike in purchases, then this is the app for you.
If the thought of using appFigures fills you with excitement and/or dread, you can check it out now for free.