How do I find my "Default" iOS Address Book?

To set (or check) your iOS Default Address Book, you will need to do the following:

1. Open iOS Settings
2. Scroll down and tap on "Contacts"
3. Tap on "Default Account" and verify that your desired address book is selected.

Once selected, any contacts you add to CircleBack, or business cards you scan, will be written to this selected address book.