Use a Mac? Had problems with new contacts created in Address Book syncing over to your iOS devices? Thanks to an obscure setting in Address Book, iCloud doesn’t always work as it should, but fixing it is typically pretty simple. First, open System Preferences, and open the iCloud tab, then double-check that Contacts sync is turned on.
Once that’s done, fire up Address Book, and open Preferences. Down at the bottom of the General tab, you’ll see an option for Default Account – click this, and switch it from On My Mac to iCloud.
Once that’s done, all new contacts created should automatically appear on all your iOS devices.
