Pumble
Signal
| Feature | Pumble | Signal |
|---|---|---|
| Pricing | Free / from $2.49/mo | Free only |
| Free Plan | ✓ Yes | ✓ Yes |
| Rating | 4.3 / 5 | 4.6 / 5 |
| Best For | small-teams, startups, budget-conscious-teams, remote-teams | privacy-advocates, journalists, activists, security-conscious-users |
| Founded | 2020 | 2014 |
| Channels | ✓ | ✗ |
| Direct Messages | ✓ | ✗ |
| Video Calls | ✓ | ✓ |
| Screen Sharing | ✓ | ✗ |
| File Sharing | ✓ | ✗ |
| Threads | ✓ | ✗ |
| End To End Encryption | ✗ | ✓ |
| Group Chats | ✗ | ✓ |
| Voice Calls | ✗ | ✓ |
| Disappearing Messages | ✗ | ✓ |
| Screen Security | ✗ | ✓ |
✓ Pumble Pros
- Unlimited message history on free plan
- Very affordable paid plans
- Familiar Slack-like interface
- Good video calling
✗ Pumble Cons
- Smaller integration ecosystem
- Less mature than Slack
- Limited automation features
✓ 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
The Verdict
Pumble is built for small teams and startups, with a focus on channels and direct-messages. Signal targets privacy advocates and journalists and leads with end-to-end-encryption and group-chats.
Signal uses custom enterprise pricing, while Pumble starts at $2.49/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.
Bottom line: Signal has a slight overall edge — but if unlimited message history on free plan matters most to you, Pumble may still be the right call.