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.
Contact PEA - Encrypted contact management tool.
Backup SMS by Piandro - Backup SMS is an app by Piandro that allows you to choose the desired conversation or text message to add it to the backup list to save it for later use.
Open Contacts - Open Contacts is an advanced address book program for managing contact info of individuals and...
Contacts Backup Kit - Contacts Backup Kit is an app by ETO that contains features so you can easily import all the phone numbers in your phonebook between the available devices when you change your smartphone.
FullContact Card Reader - Automagically scan biz cards into LinkedIn/Gmail contacts