Freedcamp is free for unlimited users and projects. The company's vision is to build a truly freemium product available to all free of charge for most of its functionality. Free accounts are currently limited to 10MB file size limit with unlimited storage on all plans. Freedcamp provides discounted premium plans to non-profits, teachers and students. You can add components you need such as Tasks, Milestones, Discussions, Time Tracking and more, when you create a project in Freedcamp.
Check intro video here - https://www.youtube.com/watch?v=2oTmkmh88Bc&feature=youtu.be