Shared Google Calendars not showing up on iPhone, iPad, and Mac? Here's the fix!Having problems getting Google Calendars to show up in the Calendars app on your iPhone, iPad, or Mac?
Updated March 2017 with additional steps for un-syncing calendars.
If you accepted an invitation from someone to share a Google calendar but aren't seeing it on your iPhone, iPad, or Mac; it could be due to your Google Sync settings. Google turns sync off by default for new calendars, particularly shared ones. It's frustrating, and it's why you can't immediately see them on your iPhone, iPad, or Mac even when you can see them online. Luckily it's also simple to fix — once you know how!
How to get shared Google Calendars to show up on iPhone, iPad, and Mac
Launch Safari or any other web browser on your iPhone, iPad, or Mac.
Go to google.com/calendar/syncselect.
Sign in if you aren't already.
Under Shared Calendars, tick the boxes for the calendars you want to see on iPhone, iPad, and Mac.
It can take a few minutes for the calendars to appear. If they don't appear right ...
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Shared Google Calendars not showing up on iPhone, iPad, and Mac? Here's the fix!