i don't know why, but my iphone is almost full just because 'Documents & Data' but first of all i don't know what documents & data is, but now i know. And now i don't want my iphone full just beacuse of that. so i want to delete some documents & data that i don't use. but if i want to delete it, it's going to delete just the junk that i have on the app or all chats and stuff on the app?
