RocketLauncher cydia tweak allows you to launch your apps at the speed of a rocket.
RocketLauncher is a lightweight speedy Lockscreen launcher that allows you to preview your application right on the Lockscreen. You can activate RocketLauncher by holding your finger down anywhere on the Lockscreen, while continuing to hold slide your finger up and down the screen to change the app previews, to launch an app release your finger over the app icon or to dismiss release your finger anywhere else.
RocketLauncher is truly unique and is built to get you to your apps without much effort, and very little configuration. There are only seven slots available for apps that by default will populate from the apps in the app switcher. Options to customize the apps that show on the Lockscreen are available and an options to stop certain apps from showing.