Ever since multitasking was introduced in iOS 4, there’s been a misconception that by closing all apps in the multitasking switcher, you’ll save system resources. The truth is that only few apps run in the background, so most of the apps in the switcher do not necessarily consume system resources.

However, with iOS 7′s smarter multitasking, the type of apps that can run in the background has significantly increased, so you might be able to see a clear difference in battery life if you keep closing apps, especially ones that have permission to run in the background.

Unfortunately, iOS 7 doesn’t offer you a way to quickly kill apps running in the background, so one has to go through the tedious task of swiping on the apps to remove them either one by one or three at a time.

A new iOS 7 jailbreak tweak called Purge makes this task a lot easier. The tweak gives you an option to close all apps when you tap and long hold on any app card in the app switcher.

Check out the video walkthrough below to see how it works:

Purge is available for free on Cydia, and is available only for iOS 7. You can also checkout SwitchSpring, that we had covered earlier in the week, which also allows you to close all apps via the app switcher.

Let us know what you think of Purge in the comments below.