Does iBooks sync through iCloud id or iTunes store account?
My iBooks collections are syncing with the collections of my other family members. We all use our own individual iCloud id's while sharing the same iTunes store account.
This forces us all to turn off "sync collections" and "sync bookmarks" in the iBooks settings of all our devices to keep our individual collections protected. However, it poses a problem because it interferes with my ability to keep my iPhone and iPad iBooks in sync.
Any way to solve this conflict?