Scrubly Express

Scrubly Express quickly and safely removes duplicate contacts from your Mac Address Book, including Exchange Contacts.

It's designed for simple and easy duplicate removal for the new Mac user plus the power to support very large enterprise level contact lists.
Features:
- Automatically remove duplicate contacts
- Easily merge and resolve merge conflicts
- Support for all Mac Address Book contacts including Exchange
- Automatically backs up your address book in the cloud
- Safely revert your data back to its original condition at any point in the process.