iOS (jailbroken): If you want to enable the passcode on your iPhone, you usually need to jump into the settings, hit the toggle and enter your passcode. If you want to speed up the process, TapTapPass makes it possible to enable your passcode from anywhere.
TapTapPass works with Activator, so you can set up a tap or gesture to instantly enable your passcode. When you perform the activator function, the screen locks with the passcode enabled. After you unlock it once, the passcode is disabled again.
If you're the type to only need a passcode occasionally, this is a great way to get the benefits of a passcode without the trouble of having it on all the time. Of course, you can always automate the process as well.