Rocket.Chat
Tettra
| Feature | Rocket.Chat | Tettra |
|---|---|---|
| Pricing | Free / from $4/mo | Free / from $8.33/mo |
| Free Plan | ✓ Yes | ✓ Yes |
| Rating | 4.1 / 5 | 4.3 / 5 |
| Best For | security-conscious-organizations, government, self-hosters, enterprises | growing-teams, ops-teams, people-teams, customer-success |
| Founded | 2015 | 2016 |
| Channels | ✓ | ✗ |
| Direct Messaging | ✓ | ✗ |
| Video Calls | ✓ | ✗ |
| Federation | ✓ | ✗ |
| E2e Encryption | ✓ | ✗ |
| Marketplace | ✓ | ✗ |
| Ai Answers | ✗ | ✓ |
| Slack Bot | ✗ | ✓ |
| Verification Cycle | ✗ | ✓ |
| Page Suggestions | ✗ | ✓ |
| Categories | ✗ | ✓ |
| Analytics | ✗ | ✓ |
✓ Rocket.Chat Pros
- Fully open-source and self-hostable
- End-to-end encryption
- Federation support between instances
- Highly customizable
✗ Rocket.Chat Cons
- Self-hosted requires maintenance
- Mobile apps less polished than Slack
- Smaller app ecosystem
✓ Tettra Pros
- AI answers questions from your knowledge base
- Slack bot for instant answers
- Content staleness alerts
- Simple editor non-technical teams love
✗ Tettra Cons
- Limited formatting options
- No public-facing documentation
- Smaller feature set than Notion
The Verdict
Rocket.Chat is built for security conscious organizations and government, with a focus on channels and direct-messaging. Tettra targets growing teams and ops teams and leads with ai-answers and slack-bot.
Pricing is close: Rocket.Chat starts at $4/mo versus $8.33/mo for Tettra — not a deciding factor on its own.
Both offer free plans, so you can test each with your real workflow before committing to a subscription.
This is a genuinely close comparison. If you can, sign up for both free trials (where available) and run a one-week test with your actual team tasks before deciding.