Zoho CRM offers various Apps and Add-ons for Productivity and Collaboration that will improve your efficiency while working with sales leads, prospects and customers. There are a set of add-ons for Google Apps users, including some integration with Zoho products such as the Zoho Mail and Zoho Projects. Additionally there are some Third-Party apps such as QuickBooks Integration, and Plug-in for MS Outlook. These add-ons & apps are categorized under three headings:
Get your important activities done in a single platform. Track your email conversations with Zoho Mail Add-on, plan & execute email campaigns with Zoho Campaigns Integration in Zoho CRM. Learn More
Google Apps makes it easier for your business teams to collaborate, communicate and share information, all in a single, centralized place by using Zoho CRM for Google Apps.
Zoho CRM for Google Users | Zoho CRM for Google Apps Users