Zendesk Support offers Free Trial, but Intercom does not.
Zendesk Support is designed for Large Enterprises, Medium Business and Small Business.
Intercom is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Zendesk Support Starts at $19/user/month when yearly whereas for Intercom Starts at $59/Month.
Some top alternatives to Zendesk Support includes Zoho Desk, ManageEngine ServiceDesk Plus, Deskero, Support Hub, HelpDesk, Desky, Help Scout, Salesforce Service Cloud, ReadyDesk, Sitehelpdesk, HESK and BoldDesk.
Some top alternatives to Intercom includes ZoomInfo Chat, ClickDesk, LiveAgent, LiveChat, Crisp, LiveEngage, Zendesk Chat, Smartchat, ChatFlow247, Freshchat and Let's Connect.