Flex is a jailbreak app that allows you to create your own jailbreak tweaks and is now available on Cydia’s BigBoss repo. This amazing utility has made possible for you to not only to develop pieces and make them functional to alter the iOS aspects and features, but also gives users the ways of customizing the apps you install from the App Store.
This also became a bit controversial in last few days as some developers were of the view that this tweak is too powerful for the general users and so it should not be made public. Others believe it’s an awesome attempt to get users familiar with how iOS works on a low-level.
Wherever you stand, it can’t be denied that Flex is an awesome looking tweak with an excellent UI to boot.