Address book program providing unified, flexible and simple interfaces for you to manage and lookup contact info of people and organizations.


CircleBack is described as 'Syncs contact between various third-party services and helps to clean them up and merge data' and is a Contact Manager in the office & productivity category. There are more than 25 alternatives to CircleBack for a variety of platforms, including Web-based, Windows, iPhone, iPad and Mac apps. The best CircleBack alternative is Google Contacts, which is free. Other great apps like CircleBack are fruux, Kontact, Memotoo and Contacts+ .
Address book program providing unified, flexible and simple interfaces for you to manage and lookup contact info of people and organizations.


With Free Address Book - Free Phone Book you can note the addresses, phone numbers, mobile, fax, company name, country, city, website address and email addresses of your contacts and partners.




ID Book is a handy, easy to use application specially designed to offer users a simple address book.

Find employee email addresses for any company and display useful contextual data for anyone who emails you.


E-Z Contact Book is a free easy to use yet powerful Windows program to store and manage contact information.

LeadFuze is like a search engine for business professionals and their contact information. Salespeople can find leads in their target market, recruiters can find new talent through passive recruiting, and marketers can build custom audience lists for ad targeting!

OLContactSync allows you to easily synchronize your Outlook contacts with any other Outlook user’s contacts per E-Mail for free.

Open Contacts is an advanced address book program for managing contact info of individuals and organizations with relationships. Distributed as freeware, the program was designed for people who need more beyond ordinary address book programs in order to improve dynamic...


Facebook, Twitter & LinkedIn are great, but don't play well together or with GMail. Discoverly helps them all "play nice". Keeping the social worlds separate, Discoverly layers the best of each network on the...

Simple and efficient lead contact management system with out of the box click to call, tracking, capture and management. A cloud CRM system for any business of any size.




adx is a minimalistic but massively web enabled address book running completely in your browser (without any plugins).



adx - addressbook.xml is the most popular Self-Hosted alternative to CircleBack.
Help B2B businesses find leads based on their target persona and connect with the decision makers


