Tracker helps teams work collaboratively, focus on what's most important, and deliver continuously. A single view of all your priorities keeps your team on the same page so you can smartly manage projects.
Pivotal Tracker is a project management tool made by developers and for developers. It is a very focused and opinionated product targeting a specific type of company. It marries agile and is best suited for large software development teams. Tracker also comes with a steep learning curve making it a very informed choice for any team that picks this.