Codegiant - Codegiant - Issue tracking, git repositories, continuous integration and documentation in a single platform.
Trello - Infinitely flexible. Incredibly easy to use. Great mobile apps. It's free. Trello keeps track of everything, from the big picture to the minute details.
GoRetro - a free retrospective tool for your Agile sprints
Asana - Asana project management is an effort to re-imagine how we work together, through modern productivity software. Fast and versatile, Asana helps individuals and groups get more done.
Scrumpy - A simple, beautiful and agile project management software
Pivotal Tracker - Pivotal Tracker: The awesome, lightweight, agile project management tool for software teams. Get your 30-day Free Trial started today!