Product A
Mattermost
by Mattermost Inc.
Self-hosted, open-source team messaging built for high-security environments.
Free tier
Visit Mattermost →Product B
Pumble
by COING d.o.o.
Free team messaging app with unlimited message history for budget-minded teams.
Free tier
Visit Pumble →Side-by-Side Comparison
| Feature | Mattermost | Pumble |
|---|---|---|
| Price | FreeBetter | Free |
| Free Tier | Yes | Yes |
| Top Pros | Air-gap deployable for high-security environments | Unlimited message history on free plan |
| Fully open-source | Very affordable paid tiers | |
| Strong compliance certifications | Clean Slack-like interface | |
| Top Cons | Self-hosting demands significant IT resources | Smaller integration library than Slack |
| Less polished UX than Slack | Video calls only on paid plans |
Choose Mattermost if you…
- Want: air-gap deployable for high-security environments
- Want: fully open-source
- Want: strong compliance certifications
Choose Pumble if you…
- Want: unlimited message history on free plan
- Want: very affordable paid tiers
- Want: clean slack-like interface