A unique and useful Contacts app with a few issues
Alone of all the Contacts apps this remarkable address book will update changes in contact info, such as telephone number, addresses, and job data, through sophisticated web searches. These data changes are periodically presented for user inspection and approval and updating.
PROBLEM ISSUES: UPDATING: If you are unsure of the update info and select that option, no changes will be made, but you also lose the new data and it does not appear to be retrievable. This new data should be stored in a buffer to allow you edit and change contact at will, and only permanently delete when you finalize contact.
NOTES: Only a few hundred words are maintained from original Apple Contact Notes. CircleBack appears to truncate the full length of the Contact Notes. This is totally unacceptable and dooms this app to infrequent use, rather than being a primary go-to app.
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CircleBack - Updated Contacts, v2.7.4