With iOS 12 on iPhone X, you can now do a single swipe up to close apps from multitasking switcher. Here are the details on it.
Here's how to invoke and use iPhone X multitasking App Switcher and then force quit (kill) apps at will on your brand new smartphone.
switcherRadii jailbreak tweak adds rounded corners of iPhone X running on iOS 11 to the iOS 10 App Switcher. Here are the details.
3DSwitcher 2 jailbreak tweak spruces up the iOS 10 app switcher with 3D effects that will make multitasking on your iPhone or iPad a little more interesting.
Eucnide is an iOS 9 Control Center replacement that displays system toggles and shortcuts, an app switcher and music controls in three separate layers. The jailbreak tweak is available to download from the BigBoss repo for $1.99.
There's no doubt jailbreaking an iOS device opens the door to so many new and previously unattainable possibilities.