SpiraTest is cheap but powerful test management tool. It has many useful features such integration to many open source and licensed testing and issue management tools, or automation host for HP QTP, IBM Rational Functional Tester, Selenium, TestComplete, the full list can be found here . Also it has requirement management, defect management, and there is a cycle for release - test set - test case - test run, and more can be found here . Jira is also well-known issue tracking tool and it used by many organisations. By Jira, you can track and follow the work items and easily manage the works. However it doesn't have basic testing activities so if you want to create test cases and manage the testing cycle Jira is not yet enough for these activities. Using both of the tools, SpiraTest as test management tool, and Jira, as issue tracking tool, may lead some difficulties such as raising defect from SpiraTest and creating a related issue for development in Jira requires manual efforts.
Not a feature, but the future of an app is under testing.