Yes, both Zendesk Support and Memsource offer a Free Trial.
Zendesk Support is designed for Large Enterprises, Medium Business and Small Business.
Memsource is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Zendesk Support Starts at $19/user/month when yearly whereas for Memsource Starts at $29/User/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 Memsource includes Text United, XTM Cloud, Lingotek, EasyTranslate, Wordscope, memoQ server, memoQ translator pro, SDL Trados Studio and Translized.