Follow the steps below to setup Google Sync on your iPhone, iPad, or iPod Touch. Requirements and Backing Up Data Google Sync is only supported on Apple iOS versions 3.0 and above. If you're on an earlier version, update iOS before setting up Google Sync. Check your Safari cookies settings to see if it is set to "From Visited" or "Always". If it's set to "Never", you're more likely to be prompted to solve a CAPTCHA.