Team chat · 2026
Mattermost·vs·Slack
Two solid choices in team chat. Here's how they stack up on pricing, fit, and trade-offs — so you can decide in a minute.
Reviewed by Switchpoint Editors ·
Take on Slack
If you're a startup under 25 seats, Slack is worth the money. Past that, do the math: Mattermost self-hosted breaks even around 100 seats; Discord works for communities and dev teams that don't need enterprise compliance; Zulip's threading model genuinely beats Slack's for async work. The decision is rarely about features — it's about which trade-off your team will actually tolerate.
Contender A
Mattermost
Open-source, self-hosted Slack alternative.
- Regulated industries and security-conscious teams.
- Free self-hosted. Pro $10/user/mo.
Best for
Pricing
Pros
- Self-hostable
- Strong compliance story
Trade-offs
- Requires ops resources
Contender B
Slack
Channel-based team messaging.
- Teams that live in channels and threads.
- Free with 90-day limit. Pro $7.25/user/mo.
Best for
Pricing
Pros
- Best-in-class integrations
- Polished UX
Trade-offs
- Per-seat pricing adds up
- Free message limit
The matrix
Side-by-side
Best for
Mattermost
Regulated industries and security-conscious teams.
Slack
Teams that live in channels and threads.
Pricing
Mattermost
Free self-hosted. Pro $10/user/mo.
Slack
Free with 90-day limit. Pro $7.25/user/mo.
Top strength
Mattermost
Self-hostable
Slack
Best-in-class integrations
Biggest trade-off
Mattermost
Requires ops resources
Slack
Per-seat pricing adds up
The verdict
Which should you pick?
Regulated industries and security-conscious teams.
Teams that live in channels and threads.
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