Google Apps not present in ZOHO CRM integration

Google Apps not present in ZOHO CRM integration

I wanted to synchronize ZOHO CRM Events/Tasks or calendar with Google calendar.
Google Apps is not present in the ZOHO CRM integration screen
I am currently on a trial, using the Professional version.

I go to setup>Appsand Add-ons.
I am offered ZohoApps and Other apps
"Other" only offers me Outlook, Phonebridge, Mobile and Office.
How do I integrate Google calendar or Google anything at all?
Has there been a big argument that I missed?
Are ZOHO and Google not playing nicely with each other anymore?

Do I have to resort to some third-party integration tool like Zapier?
I see lots of references online and in this forum to Google integration, but it does not appear in my current version.
Any help would be greatly appreciated.

Thanks
Mark