Zoho Invoice and Zoho Creator Helpdesk joined Zoho CRM & Zoho Projects in the Google Apps Marketplace today. All the apps come in both free and paid varieties, and integrate Google Apps’ users, contacts and other features into Zoho’s offerings.

The company was one of the original Google Apps Marketplace launch partners. As we reported last year, Zoho’s revenue mostly derives from applications like CRM and Project – apps that put them less in competition with Google and more in competition with Salesforce, Netsuite, and 37 Signals.
Zoho’s Raju Vegesna says a “few hundred” businesses sign up for Zoho Apps every week through the Google Apps Marketplace, and the software lineup has around 3 million users worldwide.
Zoho Invoice, which was overhauled earlier this year, includes features such as invoice creation, online payments, and expense tracking. Users can create up to five invoices for free per month; paid plans start at $8 per month.
Zoho Creator Helpdesk features trouble ticket management, asset management, a knowledge base, and reporting. Administrators can customize forms and fields and the entire look of the site. It’s available for free for up to two technicians, with pricing for three or more technicians starting at $15 per month.