Personally, I can't stand QR codes. They're annoying to scan and most don't even have value or take you anywhere worthwhile. So I ask, what's the real point?
Program's author here: the point of this app is to simplify the test and debug of the QR code itself. Although all reasonable people think they are pointless, countless graphic designers are forced to incorporate QR codes into their otherwise beautiful works. This app (and it's just an app, not an application) lets them quickly test variations.