Yes, both Help Scout and Memsource offer a Free Trial.
Help Scout is designed for Large Enterprises, Medium Business and Small Business.
Memsource is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Help Scout Starts at $20/User/Month when Billed Yearly whereas for Memsource Starts at $29/User/Month.
Some top alternatives to Help Scout includes Zoho Desk, Zendesk Support, ManageEngine ServiceDesk Plus, Freshservice, Freshdesk, LiveAgent, HelpDesk, SysAid, Jitbit Helpdesk, Desky, eStreamDesk, CRMdesk, ReadyDesk, Trakdesk, LabiDesk and HESK.
Some top alternatives to Memsource includes Text United, XTM Cloud, Lingotek, EasyTranslate, Wordscope, memoQ server, memoQ translator pro, SDL Trados Studio and Translized.