Some of the more popular file-hiding apps on the Android market right now are pretty good at their jobs, that is hiding photos, videos, documents, and such. What many of them aren't very good at doing is hiding themselves. More often than not, such apps have their very own, very obvious app icon and name in the app drawer. Or in the case of the more 'elaborate' apps, there may be a 'dummy' UI with an icon of a shady looking character in the corner that you must press.

So rather than making it obvious that you have things to hide, XDA Forum Member IDSprofile created an app called Smart Hide Calculator, which not only hides files, but also hides itself. It takes on the innocent disguise of a fully-functioning calculator; has 'Calculator' as its name, as well as a matching app icon in the app drawer; and a calculator UI that will rouse absolutely no suspicion.

However, by tapping a pre-determined pin number and the equals button, Smart Hide Calculator reveals its true self: a fully fledged app that hides and unhides files, and freezes and unfreezes apps. One must keep in mind that root access is required to freeze apps. As of right now, Smart Hide Calculator is still in its beta phase, and according to IDSprofile, a host of new features and functions will be implemented in the future.

So if you want to give this app a go, or have a suggestion for a future update, make your way over to the application thread for more details and download.