Download and install the latest version of iTunes on your computer. To transfer text messages from iPhone to computer with iTunes: The only way you can access the iPhone messages from the iTunes backup is to restore your iPhone data from the backup.
Thus, even if you download text messages from iPhone to computer successfully, you cannot view the messages freely as you want to. Moreover, although you can access the iPhone backup location on Windows or Mac, you won't be able to access and view the details in the backup. That's because iTunes works to transfer text messages from iPhone to computer by backing up your device.
The problem is that when you export text messages from iPhone with iTunes, you have to export other types of content on your mobile phone, too. It's not surprising that you can also save text messages from iPhone to computer for free using iTunes. How to Transfer Text Messages from iPhone to Computer with iTunes Download for PC Download for Mac Method 2.