Synchronizing Google apps with Zoho CRM

Synchronizing Google apps with Zoho CRM

I am trying to sync google apps with Zoho CRM and I am following the step by step guide provided by zoho.  Once I reach step 4.  In Zoho CRM, click  Setup > Apps & Add-ons > Google Apps > Email .  I am unable to find google apps in the apps and add-ons tab.  Do I need a paid version to do this?