Yes, both Constructor and Jira offer a Free Trial.
Constructor is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Jira is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Constructor Starts at $5/User/Month whereas for Jira Starts at $6.25/User/Month when Billed Yearly.
Some top alternatives to Constructor includes Jira, Assembla, Sprintly, Blossom, ClickUp, Swit, Webbing Labs, CoLab, Height, Collab Spot and Worktez.
Some top alternatives to Jira includes Trello, Confluence, Asana, SwiftKanban, Kanbanize, ClickUp, Height, Kanban Tool, Kanban Zone and KanbanFlow.