iPhone 5, 16GB iOS 6 The documents and data folder of Facebook app is growing daily and is up to 3GB of data (2.9GB of documents and data) I have successfully downloaded ifunbox and cleared the cached folder and at most it does 100MB. Which allows me to use FB app day to day. But it's contiuning to eat up space. Question: Is there a way to delete all this useless data that Facebook keeps compiling? Or perhaps a way to download Facebook app again on iOS 6, even though the App Store says it requires iOS 7. Not an option: Upgrading iOS, Disregarding Facebook completely.