Sprintly is a great tool for startups, agencies, and small development teams to use to collaborate on software projects. You can see what your team is working on in real-time with the advanced activity feeds and productivity analytics. You can also attach a video URL, Gist, or other files to comments or descriptions. Updates are sent out in real-time via email and small popup notifications on the website. Sprintly also integrates with GitHub, which is a best-in-class Pull Request integration.