Yes, both Really Simple Support and Freshdesk offer a Free Trial.
Really Simple Support is designed for Medium Business and Small Business.
Freshdesk is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for Really Simple Support Starts at $6.66/Month when Billed Yearly whereas for Freshdesk Starts at $15/User/Month when Billed Yearly.
Some top alternatives to Really Simple Support includes Freshdesk, Support Hub, Snappy, Support.cc by 500apps, SmartSupport, Little SaaS Communication, Qualified, Workvivo, QReviews, Stream Follows, Featurelly and IFTTT.
Some top alternatives to Freshdesk includes Zendesk Support, Zoho Desk, Tidio Helpdesk, SeamlessDesk, LiveAgent, HelpDesk, SysAid, HubSpot Service Hub, Salesforce Service Cloud, CRMdesk, Helpspot, Sitehelpdesk and Trakdesk.