If you make a change to one then you can use GO Contact Sync Mod to update the other, quickly, conveniently, and almost effortlessly. It’s open source, so it’s free to use, and doesn’t have toolbars or spyware spoiling the experience.
Here’s how to keep your address books synced with free, open-source software.
GO Contact Sync Mod prompts us whether we want to keep the Google contact or delete it too.
Below the sync options are some important configuration settings.
Enter the number of minutes between syncs and select one of the two options: Outlook contacts to Gmail, or Gmail contacts to Outlook.
The sync's progress and results appear in a small window that pops up from the program's icon in the notification area.Though these options have check boxes beside each, you can only choose one.