Compare UnrealIRCd and Mattermost on pricing, features, platforms, and ratings — both Team Chat tools, open-source vs Freemium pricing to decide which fits…
At a Glance
UnrealIRCd
Mattermost
Primary category
Team Chat
Team Chat
Rating
Not documented
Not documented
Pricing model
open-source
Freemium
Starting price
Free
Free (Starter, self-hosted); Professional from $10/user/month
Free plan
Not documented
Yes
Free trial
Not documented
Not documented
Platforms
Mac, Windows
Web, iOS, Android, Mac, Windows
Team collaboration
Not documented
Not documented
AI features
Not documented
Not documented
Public API
Yes
Not documented
Pricing Compared
Starting price reflects the lowest paid tier, not the full cost for every team size or usage level.
UnrealIRCd
Open Source — Free n/a
Mattermost
Starter — Free N/A
Professional — $10/user/month annual
Enterprise — Custom annual
Pros & Cons
UnrealIRCd
Pros
Completely free and open source with no licensing cost
Mature codebase with more than two decades of continuous development
Widely deployed, giving it a large community for support and troubleshooting
Strong built-in security tooling including SSL/TLS, IP cloaking, and spam filtering
Modular design makes it extensible without modifying the core server
Cons
Requires self-hosting and manual server administration; no managed cloud offering
Configuration and module management can be complex for IRC newcomers
IRC as a protocol has declined in mainstream popularity relative to modern chat platforms
Community support channels rather than a dedicated paid support contract
Mattermost
Pros
Fully open-source core with self-hosted and air-gapped deployment options
Strong fit for regulated industries, government and defense customers
Playbooks provide built-in workflow automation not native to Slack
Deep integrations with developer and DevOps tooling
Lightweight architecture (single Go binary) makes self-hosting comparatively simple
Cons
Smaller app/integration marketplace than Slack or Microsoft Teams
Enterprise pricing is custom-quoted and not publicly transparent
Self-hosting requires ongoing server maintenance and updates
UI and mobile experience is generally considered less polished than Slack
Annual prepaid billing only for official Professional and Enterprise licenses, no monthly option
Use Cases
UnrealIRCd
Community IRC networks — Hobbyist and open-source communities run UnrealIRCd to host their own real-time chat network.
Gaming and Discord-alternative chat — Gaming groups and privacy-focused communities self-host UnrealIRCd as an alternative to centralized chat platforms.
Legacy enterprise or technical support channels — Some technical organizations maintain UnrealIRCd-based networks for internal support or developer chat.
Mattermost
Incident response and DevOps workflows — Engineering teams use Playbooks to coordinate incident response with automated checklists and dedicated channels.
Regulated and government communication — Public-sector and financial-services organizations need self-hosted or air-gapped messaging to meet compliance requirements.
Secure internal team chat — Organizations that want Slack-like messaging while keeping full control of where data is stored.