Google Contacts - Google Contacts is Google's contact management tool that is available in its free email service Gmail, as a standalone service, and as a part of Google's business-oriented suite of web apps Google Apps.
Cardbox - Contacts reimagined as a social network ✨
Apple Contacts App - Access and edit your contacts from personal, business, and other accounts with the Contacts app.
Halna Outliner - "Halna Outliner" is an outline processor that has Two panes, one for Tree part and one...
Free Address Book - In our contact management software you can store fast and easily name, phone numbers, birthdays, address, company name, city, mobile numbers, insurance and loan info, e-mail addresses.
Tree Notes - Simple, clean and light-weight notes manager. Organize all your notes in a tree structure with icons.