Hillcharts were introduced in 2018 in the Basecamp
project management tool.
If you can't use Basecamp but you still want to follow the Shape Up
philosophy, you can use Hillia for free to track progress of your own projects with Hillcharts.
is a complete project management toolkit that provides among others to-do lists, milestone management, forum-like messaging, file sharing, time tracking tools and Hillcharts which are completely integrated.