iContact

iContact backs up every contact you have stored in your own Gmail account, so you don't have to manually re-enter any contact that gets lost.

All the information contained in a contact file is extracted directly by iContact and is present on the hard disk of the PC so that you are not obliged to access the service in order to consult certain data: telephone number, address, etc.. This last data can be used with Google maps to know the exact location.

The contents extracted by the tool can be found through the search module, which is especially appreciated if you have a large number of contacts.