Zendesk Support offers Free Trial, but Voiceflow does not.
Zendesk Support is designed for Large Enterprises, Medium Business and Small Business.
Voiceflow is designed for Individuals, Large Enterprises, Medium Business and Small Business.
Pricing for Zendesk Support Starts at $19/user/month when yearly whereas for Voiceflow Starts at $40/User/Month when Billed Yearly.
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 Voiceflow includes Botsociety, Dialogue, Google Cloud Dialogflow, Botpress, Sales.AI, Qualified, Workvivo, ChatBotKit, Speechflow, SimpleChatbot.co, Botfront and Dialogbot.AI.