My Personal Kanban - This is a one page HTML/JavaScript application for people who would like to use simple and basic...
Slack - A messaging app for teams who see through the Earth!
TaskBoard - A Kanban-inspired app for keeping track of things that need to get done.
Telegram - Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.
buckets.co - Feature rich kanban board collaboration platform.
Mattermost - Mattermost is an open source alternative to Slack.