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.

Astral - A social network for augmented reality 📍

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.

Azendoo Task Pilot - Task collaboration for teams 🚀

Basecamp - A simple and elegant project management system.

star-history - The missing star history graph of github repos