Extensify lets you “tweak” your iOS apps without jailbreaking

A newly launched “tweak store” called Extensify gives iOS users an alternative to jailbreaking their devices by offering a simpler way to install modified versions of popular third-party applications like Snapchat, YouTube, Twitter, WhatsApp, Vine, Instagram, and others. It stops short of allowing users to modify the iOS operating system itself. https://extensify.io/softlaunch/