WP Project Manager Pro v1.3.7 is a web based project management software for WordPress with frontend feature. It is completely open source. So you can customize it exactly the way you want. It also has file sharing, task list, calendar, milestone, private messaging and discussion features. It also has some add-on to enhance more functionality.
= 1.3.7 - October 15, 2015 =
* [fix] Fix LogicException on autoloader
= 1.3.6 - October 15, 2015 =
* [fix][pro] Add category for front-end
* [fix] Email notification subject issue fixed