Hillo - Board activity tracking for Trello
Hello Epics for Trello - Simplify your Trello board with parent/child relationships
Paws for Trello - The best way to use Trello on your desktop
HiddenMe - Hide desktop icons with a single click.
Scrumpy - A simple, beautiful and agile project management software
CloudApp Trello Power-Up - Attach your CloudApp drops to your Trello cards on the fly!