The iPhone 5S is widely expected to pack a sapphire-laden fingerprint sensor, which should make the process of unlocking the device a lot more secure. But until it happens, if it indeed ever does happen, the traditional passcode / password tools are your best hope of securing your device natively. If you're jailbroken, however, there are plenty of additional options at your disposal, and from the makers of the very enjoyable Piano Passcode tweak comes XPasscode, another Cydia gem that allows you to create your very own themes.
