NHS
Yes, both Zoho Desk and SeamlessDesk offer a Free Trial.
Zoho Desk is designed for Large Enterprises, Medium Business and Small Business.
SeamlessDesk is designed for Medium Business and Small Business.
Pricing for Zoho Desk Starts at $7/user/month when yearly whereas for SeamlessDesk Starts at $57/Month.
Some top alternatives to Zoho Desk includes Zendesk Support, Tidio Helpdesk, ManageEngine ServiceDesk Plus, Jira Service Desk, HelpDesk, SysAid, Desky, ReadyDesk, Sitehelpdesk, Trakdesk, HESK and BoldDesk.
Some top alternatives to SeamlessDesk includes Zendesk Support, Zoho Desk, Tidio Helpdesk, Freshservice, Freshdesk, Deskero, LiveAgent, HelpDesk, SysAid, Jitbit Helpdesk, ReadyDesk, Sitehelpdesk, HESK, Help Desk Premier, DeskXpand and Scopedesk.