Yes, both HappyFox and Tidio Helpdesk offer a Free Trial.
HappyFox is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Tidio Helpdesk is designed for Large Enterprises, Medium Business and Small Business.
Pricing for HappyFox Starts at $29/Month when Billed Yearly whereas for Tidio Helpdesk Starts at $24/month when yearly.
Some top alternatives to HappyFox includes Zendesk Support, Zoho Desk, Tidio Helpdesk, Freshservice, Jira Service Desk, Freshdesk, Deskero, SeamlessDesk, HelpDesk, SysAid, Jitbit Helpdesk, Desky, CRMdesk, ReadyDesk, HESK and BoldDesk.
Some top alternatives to Tidio Helpdesk includes Zendesk Support and Zoho Desk.