When iTunes started, it was fine because there was only music to deal with. But with the addition of other media types in iOS devices, it's become very messy. I

When iTunes started, it was fine because there was only music to deal with. But with the addition of other media types in iOS devices, it's become very messy. If you have books and photos on your iOS device, there is no simple way to get these to their respective apps on the Mac (iBooks and Photos/erstwhile iPhoto). Using iTunes will do almost nothing if you aren't buying all your stuff from Apple, except backup all data (including these) into a "hidden" location. You'd have to use each of these apps every time you want to just get the latest from the iOS device to it. Apple should introduce a simple sync application that will take all photos to Photos, all books to iBooks, all apps to iTunes or some new App app (the removal of app transfer from iOS devices into iTunes is a big issue in different ways), all music to iTunes, etc., along with all the respective user-created metadata (like collections for books, favorites for photos, etc.). Most importantly, this should work for things obtained from non-Apple sources. (Sometimes I wish Apple would have interviews with users like me to understand how difficult things are and use that to improve its products)