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.
Lanes - Superpower your productivity.
TaskBoard - A Kanban-inspired app for keeping track of things that need to get done.
Asana Timeline - Visualize your project plan so you can hit your deadlines.
Pintask - Pintask is the most customizable Kanban board.
Task List Completed - GitHub PR check to make sure all tasks are ticked off ✅