CleanMerge Duplicate Contacts is a utility tool designed for iPhone users to efficiently clean up and manage their address book. The program offers various features to streamline the process of removing duplicate and unnecessary contacts, ensuring a clutter-free address book.

With CleanMerge Duplicate Contacts, users can easily bulk delete contacts, remove duplications, and detect duplicate contacts based on name, phone number, and email address. The app allows for backups to CSV and VCF files before merging contacts, providing added security to users' address books.

Key features include bulk contact deletion, automatic detection of duplicates, backup and restoration options, and compatibility with multiple address book sources like iCloud, Gmail, Yahoo, and more. Tested with over 8,000 contacts, the app promises fast and stable performance for efficient contact management.