Yes, both Jira and Kustomer offer a Free Trial.
Jira is designed for Large Enterprises, Medium Business and Small Business.
Kustomer is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Jira Starts at $6.25/User/Month when Billed Yearly whereas for Kustomer Starts at $29/User/Month.
Some top alternatives to Jira includes Trello, Confluence, Asana, SwiftKanban, Kanbanize, ClickUp, Height, Kanban Tool, Kanban Zone and KanbanFlow.
Some top alternatives to Kustomer includes Zoho Desk, Zendesk Support, ManageEngine ServiceDesk Plus, Zendesk Sell, Freshservice, Freshdesk, HelpDesk, SysAid, Jitbit Helpdesk, Desky, Salesforce Service Cloud, CRMdesk, Gorgias, Trakdesk, AzureDesk and BoldDesk.