Slackin - Create your own public Slack chat community
SlimPlanner - Team scheduling, resource planning, task management
Hamster Pad - A social network built on top of Slack
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.
Mio - Powering seamless communication between workplace chat apps.
WorkPatterns - The modern manager's toolkit: 1:1s, feedback, & recognition