Yes, both Really Simple Support and Snappy offer a Free Trial.
Really Simple Support is designed for Medium Business and Small Business.
Snappy is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Really Simple Support Starts at $6.66/Month when Billed Yearly whereas for Snappy Starts at $15/User/Month.
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 Snappy includes Zendesk Support, Zoho Desk, Tidio Helpdesk, Freshservice, Freshdesk, Deskero, Teamwork Desk, HelpDesk, SysAid, Jitbit Helpdesk, lemtalk, Spiceworks Help Desk, LabiDesk, HESK, Support.cc by 500apps and BoldDesk.