Zentrum is nice and
brand new cydia tweak  by TweakWiz(@TweakWiz) (Developer of MockinbirdX, SweetDisplay,
Griddy) which brings you a customizable and searchable app panel, control
center toggles, a music player, and seamless multitasking, all in one place. It
provides a clear overview and will greatly increase your productivity. 
Zentrum is nice and brand new cydia tweak  by TweakWiz(@TweakWiz) (Developer of MockinbirdX, SweetDisplay, Griddy) which brings you a customizable and searchable app panel, control center toggles, a music player, and seamless multitasking, all in one place
Zentrum
This
tweak is simply the great, i like it. Double tap on homebutton you will see the
appswitcher with a whole new UI and many options as you can see in the
screenshots. Swipe up or down on snapshots to close apps, and hold down the
home card to show the clear all apps screen. In addition to that, you can swipe
left to access music controls and control center and you can even search any
app from the top.  It has a nice animation effects and will work
flawlessly on your iPhone, iPod, and even your iPad. 

Zentrum is nice and brand new cydia tweak  by TweakWiz(@TweakWiz) (Developer of MockinbirdX, SweetDisplay, Griddy) which brings you a customizable and searchable app panel, control center toggles, a music player, and seamless multitasking, all in one place
After installing
this tweak, you can have options to configure from the settings app. From there
you can enable or disable Zentrum and you can also activate Zentrum by assign
activation method via Activator. You can even enable or disable control toggles
and music player, arrange App Panel you want, swap the order of control toggles
and music player and set animation duration of Zentrum.

Zentrum is
available in Cydia via BigBoss repo for $1.99 and is compatible with iOS 9 or later.
If you are not yet
jailbroken then follow this guide on How to jailbreak iOS 9.0.2 using Pangu?