Yes, both Snappy and Teamwork Desk offer a Free Trial.
Snappy is designed for Large Enterprises, Medium Business and Small Business.
Teamwork Desk is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Snappy Starts at $15/User/Month whereas for Teamwork Desk Starts at $8.50/User/Month when Billed Yearly.
Some top alternatives to Snappy includes Zoho Desk, Zendesk Support, ManageEngine ServiceDesk Plus, 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 Teamwork Desk includes Zoho Desk, Zendesk Support, ManageEngine ServiceDesk Plus, Freshservice, Freshdesk, Deskero, HelpDesk, SysAid, Jitbit Helpdesk, Desky, eStreamDesk, Helpspot, ReadyDesk, AzureDesk, HESK and Help Desk Premier.