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Yes, both NetHelpDesk and Zendesk Support offer a Free Trial.
NetHelpDesk is designed for Large Enterprises, Medium Business and Small Business.
Zendesk Support is designed for Large Enterprises, Medium Business and Small Business.
The starting price of Zendesk Support begins at $19/user/month when yearly, while pricing details for NetHelpDesk are unavailable.
Some top alternatives to NetHelpDesk includes Zendesk Support, Zoho Desk, Tidio Helpdesk, Kustomer, Freshservice, ManageEngine ServiceDesk Plus, Freshdesk, Kayako, Vision Helpdesk, LiveAgent, TeamSupport, Reamaze, SysAid, osTicket, Jitbit Helpdesk, Help Scout and Gorgias.
Some top alternatives to Zendesk Support includes Zoho Desk, Tidio Helpdesk, Deskero, Support Hub, HelpDesk, Desky, Help Scout, Salesforce Service Cloud, ReadyDesk, Sitehelpdesk, HESK and BoldDesk.