What are some alternatives?
When comparing jtrac and CircleCI, you can also consider the following products
Jira - The #1 software development tool used by agile teams. Jira Software is built for every member of your software team to plan, track, and release great software.
Jenkins - Jenkins is an open-source continuous integration server with 300+ plugins to support all kinds of software development
TeamClerk - Team Clerk is project and task management software that automatically keeps your team organized and monitors progress of all of your projects and tasks. Let us organize what you do,so you can focus on why you do it.
Travis CI - Focus on writing code. Let Travis CI take care of running your tests and deploying your apps.
Bugzilla - Bugzilla is a "Defect Tracking System" or "Bug-Tracking System".
Codeship - Codeship is a fast and secure hosted Continuous Delivery platform that scales with your needs.