There is so much to take in within this app that it all very overwhelming at first. However, once you start to get the hang of things, it quickly becomes simple and easy to navigate. I am referring to the paid version, of course. It is well worth the dollar to get rid of the ads to be able to view all the changing displays that filter by country selection and other views of data. I give it four stars only because nothing is perfect and like all apps this one has room for improvement, but Im hard-pressed to be able to say what that improvement should be other than some exportable content or even some more ways to view the national debt!