Real-time Communication
Subscription / SaaS
- #slack
On-premise
Mattermost
- Free
- Direct (1:1) Calls and screensharing
- Project management
- Unlimited channels, playbooks, and boards
- Group calls w/screenshare
- Unlimited users
- Unlimited teams
Rocket.Chat
- Community
- Paid integration API w/ Dead Simple Screen Sharing
- Unlimited 1:1 and group messaging
- 10,000 push notifications per month
- 5 active marketplace apps
- 3 private apps
- 200 concurrent users
- OAuth basic social logins