Yes, both Really Simple Support and Support Hub offer a Free Trial.
Really Simple Support is designed for Medium Business and Small Business.
Support Hub 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 Support Hub Starts at $19/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 Support Hub includes Zendesk Support, Zoho Desk, Tidio Helpdesk, Freshdesk, SupportBee, HelpDesk, Desky, EngageBay Helpdesk System, CRMdesk, ReadyDesk, HESK and HelpHub.