Documenso
Mattermost
| Feature | Documenso | Mattermost |
|---|---|---|
| Pricing | Free / from $30/mo | Free / from $10/mo |
| Free Plan | ✓ Yes | ✓ Yes |
| Rating | 4.2 / 5 | 4.2 / 5 |
| Best For | startups, freelancers, open-source-businesses, privacy-focused-companies | devops-teams, security-conscious-orgs, government, enterprise |
| Founded | 2023 | 2015 |
| E Signatures | ✓ | ✗ |
| Templates | ✓ | ✗ |
| Audit Trail | ✓ | ✗ |
| Api | ✓ | ✗ |
| Team Management | ✓ | ✗ |
| Reminders | ✓ | ✗ |
| Self Hostable | ✓ | ✗ |
| Messaging | ✗ | ✓ |
| Channels | ✗ | ✓ |
| Playbooks | ✗ | ✓ |
| Integrations | ✗ | ✓ |
| Self Hosting | ✗ | ✓ |
| Compliance | ✗ | ✓ |
✓ Documenso Pros
- Open-source with self-hosting option
- Legally binding electronic signatures
- Clean modern interface
- API-first for developer integration
✗ Documenso Cons
- Fewer enterprise features than DocuSign/Adobe Sign
- Smaller template library
- Self-hosting requires maintenance
✓ Mattermost Pros
- Self-hostable
- Open source
- DevOps integrations
- Secure
✗ Mattermost Cons
- Smaller ecosystem
- Fewer integrations than Slack
- Self-hosting complexity
The Verdict
Documenso is built for startups and freelancers, with a focus on e-signatures and templates. Mattermost targets devops teams and security conscious orgs and leads with messaging and channels.
On pricing, Mattermost is the clear winner for budget-conscious users — starting at $10/mo compared to $30/mo for Documenso. That $20/mo difference adds up quickly for growing teams.
Both offer free plans, so you can test each with your real workflow before committing to a subscription.
Feature-wise, Documenso offers broader built-in capabilities (7 features vs 6), while Mattermost takes a more focused approach — which can mean a simpler, faster onboarding experience.
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.