Yes, both Zendesk Support and TaskSift offer a Free Trial.
Zendesk Support is designed for Large Enterprises, Medium Business and Small Business.
TaskSift is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Zendesk Support Starts at $19/user/month when yearly whereas for TaskSift Starts at $7.50/Month when Billed Yearly.
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.
Some top alternatives to TaskSift includes Freshservice, HelpDesk, osTicket, Snappy, Support.cc by 500apps, PagerDuty, YetiCloud, Spike.sh, Mission Manager, StatusCast Incident Management and Suptask.