syncing iPhone to mac: There are a few ways to stop syncing your iPhone to your Mac. The easiest way is to open the System Preferences and select the Sync tab. From here, you can choose whether or not to sync your phone with your Mac. If you don’t want to sync at all, you can uncheck the box next to “Sync everything.” If you do want to sync, but don’t want to have all of your contacts and apps show up on your Mac, you can choose which apps to sync by ticking the box next to “All apps.” Finally, if you only want certain apps on your Mac but not all of them, you can tick the box next to “Only some apps.”