Yes, both Jira and IntelliJ IDEA offer a Free Trial.
Jira is designed for Large Enterprises, Medium Business and Small Business.
IntelliJ IDEA is designed for Individuals, Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for Jira Starts at $6.25/User/Month when Billed Yearly whereas for IntelliJ IDEA Starts at $41/User/Month when Billed Yearly.
Some top alternatives to Jira includes Trello, Confluence, Asana, SwiftKanban, Kanbanize, ClickUp, Height, Kanban Tool, Kanban Zone and KanbanFlow.
Some top alternatives to IntelliJ IDEA includes Codeanywhere, PaizaCloud, Eclipse Che, Visual Studio IDE, Koding, CodeTogether, Flutter, Codefile and Pseudocode Editor.