Yes, both Trello and HappyFox offer a Free Trial.
Trello is designed for Individuals, Freelancers, Large Enterprises, Medium Business and Small Business.
HappyFox is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for Trello Starts at $5/User/Month when Billed Yearly whereas for HappyFox Starts at $29/Month when Billed Yearly.
Some top alternatives to Trello includes Quickbase , Smartsheet, ClickUp, Zoho Projects, Freshbooks, Jira, Basecamp, Wrike, monday.com, Asana, Teamwork, ProjectManager.com, Microsoft Project, Worksuite, Trackboard, Quick Base, Todoist, Resource Guru and Height.
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.