One of the joys of dealing with an Android device is that, even without root, the level of customization available to users is simply invaluable. Most of those little annoyances can be dealt with by means of a simple app or mod, and if you've always taken exception to the navigation bar on your Android device, a little app by the name of Ultimate Dynamic Navbar may have your back. While there are perhaps dozens of apps out there allowing you to resize and reposition the navigation bar for your infinite convenience, Ultimate Dynamic Navbar trumps them all with a rather simple idea; it houses the ability to be hidden or shown at will.