Slack Pro vs Mattermost
Side-by-side price and match comparison — Meetings.
Price & match side-by-side
| Slack Pro | Mattermost | |
|---|---|---|
| Monthly | $7.25 | Free |
| Annual | $87 | Free |
| Free tier? | No (paid baseline) | Yes — free |
| Match score | — (baseline) | 93/100 |
| Est. savings | — | ~$87/yr |
| Visit | Paid product | Open free |
Strengths often cited for Mattermost: Open source Self-host Channels Integrations
Open-source Slack-style team chat you can self-host free for unlimited history.
Verified public list price — confirm on vendor site
FAQ
Is Mattermost cheaper than Slack Pro?
Yes — Mattermost is free, while Slack Pro is about $7.25/mo. Estimated annual savings: $87.
How good is Mattermost as a Slack Pro alternative?
Match score 93/100 for typical Slack Pro workflows. Open-source Slack-style team chat you can self-host free for unlimited history. Trial both before you cancel.
Slack Pro vs Mattermost — which should I pick?
Pick Mattermost if you want to save ~$87/yr and accept a 93/100 feature match. Stay on Slack Pro if you need its full pro suite and ecosystem.
How does CheaperThan score this comparison?
Match score is an editorial estimate of workflow overlap, not a star review. Prices are Estimated or Verified; paid listings are labeled. Full transparency: /trust/ and /methodology/.
Is there a longer guide about free Slack Pro alternatives?
Yes — see https://cheaperthen.com/guides/free-slack-alternatives-2026/. It links back to the live /slack/ ranking and this side-by-side page.
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