Yes, both Snappy and Tidio Helpdesk offer a Free Trial.
Snappy is designed for Large Enterprises, Medium Business and Small Business.
Tidio Helpdesk is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Snappy Starts at $15/User/Month whereas for Tidio Helpdesk Starts at $24/month when yearly.
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.
Some top alternatives to Tidio Helpdesk includes Zendesk Support and Zoho Desk.