Signal
Taiga
| Feature | Signal | Taiga |
|---|---|---|
| Pricing | Free only | Free / from $5/mo |
| Free Plan | ✓ Yes | ✓ Yes |
| Rating | 4.6 / 5 | 4.2 / 5 |
| Best For | privacy-advocates, journalists, activists, security-conscious-users | agile-teams, open-source-advocates, startups, scrum-teams |
| Founded | 2014 | 2014 |
| End To End Encryption | ✓ | ✗ |
| Group Chats | ✓ | ✗ |
| Voice Calls | ✓ | ✗ |
| Video Calls | ✓ | ✗ |
| Disappearing Messages | ✓ | ✗ |
| Screen Security | ✓ | ✗ |
| Scrum Boards | ✗ | ✓ |
| Kanban | ✗ | ✓ |
| Epics | ✗ | ✓ |
| User Stories | ✗ | ✓ |
| Sprint Planning | ✗ | ✓ |
| Wiki | ✗ | ✓ |
✓ Signal Pros
- Industry-leading encryption
- Completely free and open-source
- No ads or data collection
- Cross-platform support
✗ Signal Cons
- Smaller user base than WhatsApp
- Limited business features
- No channels or bots
✓ Taiga Pros
- Fully open-source and self-hostable
- Beautiful modern interface
- Both Scrum and Kanban support
- Very affordable premium tier
✗ Taiga Cons
- Smaller community than Jira
- Fewer integrations
- Limited reporting features
The Verdict
Signal is built for privacy advocates and journalists, with a focus on end-to-end-encryption and group-chats. Taiga targets agile teams and open source advocates and leads with scrum-boards and kanban.
Signal uses custom enterprise pricing, while Taiga starts at $5/mo — a tangible advantage for teams with a fixed budget.
Both offer free plans, so you can test each with your real workflow before committing to a subscription.
Signal edges out on user ratings (4.6 vs 4.2). While both are well-regarded, that gap reflects real differences in user satisfaction worth considering.
Bottom line: Signal has a slight overall edge — but if fully open-source and self-hostable matters most to you, Taiga may still be the right call.