UpDiagram is the collaborative project management tool that shortens users' time and effort to manage their projects. It is a free agile project tool for scrum teams.
Contra is a slick app for voicing your most honest opinions. It's pretty simple; you pose a two-sided question and get thoughtful responses and votes from people all around the world. Be careful though: it gets suuuuppper addicting because of the debate mechanism. I've personally spent a few too many hours on it, just trying to prove my point!
Whether you freelance full-time or on the side, you're likely juggling multiple projects at once - so your time is scarce and need to make the most of it. Chief helps you keep track of your tasks, but also help you decide what's most important to do next.