Downloading iAddressX 4.0.1 for Mac from the developer's website was possible when we last checked. We cannot confirm if there is a free download of this app available. This software for Mac OS X was originally designed by Tropical Software. The application lies within Lifestyle Tools, more precisely Bookkeeping & Cataloging. Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe.
From the developer:
iAddressX puts your contacts' information in your menu bar for quick and easy access. iAddressX allows you to quickly dial, send email, paste mailing labels, find contacts, and many other tasks. It is a powerful personal-contacts productivity tool for instant access from the desktop to just about everything in Apple's Contacts app (formerly the Address Book).
You may want to check out more Mac applications, such as Budget Planner, To be Artist or AddressBook Aid, which might be similar to iAddressX.